AIPMT 2005 · Physics

AIPMT 2005 Physics Questions with Solutions

The AIPMT 2005 paper had 49 Physics questions from 22 chapters.

Oscillations had the most questions (5), followed by Current Electricity, Nuclei and Semiconductor Electronics with 4 each.

2 questions below have the answer and explanation free; the other 47 are in Premium.

Physics questions
49
Chapters covered
22
Solved free here
2 of 49
Easy / Medium / Hard
15 / 28 / 6

Difficulty is NEET MIND's own tag for each question.

Chapter-wise: AIPMT 2005 Physics

How many questions each chapter had in AIPMT 2005. Open a chapter for its questions from every year.

  1. Oscillations5 Qs
  2. Current Electricity4 Qs
  3. Nuclei4 Qs
  4. Semiconductor Electronics4 Qs
  5. Electrostatic Potential and Capacitance3 Qs
  6. Motion in a Plane3 Qs
  7. Moving Charges and Magnetism3 Qs
  8. System of Particles and Rotational Motion3 Qs
  9. Thermodynamics3 Qs
  10. Atoms2 Qs
  11. Dual Nature of Radiation and Matter2 Qs
  12. Gravitation2 Qs
  13. Work, Energy and Power2 Qs
  14. Alternating Current1 Q
  15. Electromagnetic Induction1 Q
  16. Electromagnetic Waves1 Q
  17. Magnetism and Matter1 Q
  18. Motion in a Straight Line1 Q
  19. Ray Optics and Optical Instruments1 Q
  20. Thermal Properties of Matter1 Q
  21. Units and Measurements1 Q
  22. Waves1 Q

All 49 AIPMT 2005 Physics questions

In paper order. Try each one, then open the answer where it is shown.

  1. Question 1 (AIPMT 2005, Q1)

    Moving Charges and MagnetismHard
    A coil in the shape of an equilateral triangle of side ll is suspended between the pole pieces of a permanent magnet such that its plane is parallel to the magnetic field B⃗\vec{B}. If due to a current ii in the triangle a torque τ\tau acts on it, the side of the triangle is:
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  2. Question 2 (AIPMT 2005, Q2)

    Current ElectricityMedium
    Two batteries, one of emf 18 V18\,V and internal resistance 2 Ω2\,\Omega and the other of emf 12 V12\,V and internal resistance 1 Ω1\,\Omega, are connected as shown. The voltmeter VV will record a reading of:
    1. Option A: 7 V
    2. Option B: 21 V
    3. Option C: 14 V
    4. Option D: 28 V

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  3. Question 3 (AIPMT 2005, Q3)

    OscillationsEasy
    A point source emits sound equally in all directions in a non-absorbing medium. Two points PP and QQ are at distance 2 m2\,m and 3 m3\,m respectively from the source. The ratio of the intensities of the waves at PP and QQ is:
    1. Option A: 9:49:4
    2. Option B: 2:92:9
    3. Option C: 9:29:2
    4. Option D: 4:94:9

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  4. Question 4 (AIPMT 2005, Q4)

    Work, Energy and PowerMedium
    A bomb of mass 30 kg30\,kg at rest explodes into two pieces of masses 18 kg18\,kg and 12 kg12\,kg. The velocity of 18 kg18\,kg mass is 6 m s−16\,m\,s^{-1}. The kinetic energy of the other mass is:
    1. Option A: 243 J
    2. Option B: 486 J
    3. Option C: 564 J
    4. Option D: 388 J

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  5. Question 5 (AIPMT 2005, Q5)

    System of Particles and Rotational MotionMedium
    A drum of radius RR and mass MM rolls down without slipping along an inclined plane of angle θ\theta. The frictional force:
    1. Option A: converts translational energy to rotational energy
    2. Option B: dissipates energy as heat
    3. Option C: decreases the rotational motion
    4. Option D: decreases the rotational and translational motion

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  6. Question 6 (AIPMT 2005, Q6)

    GravitationEasy
    Imagine a new planet having the same density as that of Earth but it is 3 times bigger than the Earth in size. If the acceleration due to gravity on the surface of Earth is gg and that on the surface of the new planet is g′g', then:
    1. Option A: g′=3gg' = 3g
    2. Option B: g′=g/9g' = g/9
    3. Option C: g′=9gg' = 9g
    4. Option D: g′=g/3g' = g/3

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  7. Question 7 (AIPMT 2005, Q7)

    Electrostatic Potential and CapacitanceHard
    A network of four capacitors of capacitances C1=CC_1=C, C2=2CC_2=2C, C3=3CC_3=3C and C4=4CC_4=4C are connected to a battery as shown. The ratio of charges on C2C_2 and C4C_4 is:
    1. Option A: 223\dfrac{22}{3}
    2. Option B: 322\dfrac{3}{22}
    3. Option C: 722\dfrac{7}{22}
    4. Option D: 227\dfrac{22}{7}

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  8. Question 8 (AIPMT 2005, Q8)

    Thermal Properties of MatterMedium
    Which of the following circular rods, each made of the same material and whose ends are maintained at the same temperature difference, will conduct most heat?
    1. Option A: r=2r0, l=2l0r=2r_0,\ l=2l_0
    2. Option B: r=2r0, l=l0r=2r_0,\ l=l_0
    3. Option C: r=r0, l=l0r=r_0,\ l=l_0
    4. Option D: r=r0, l=2l0r=r_0,\ l=2l_0
    Show answer & explanation

    Correct answer: (B) r=2r0, l=l0r=2r_0,\ l=l_0

    Explanation

    Rate of heat conduction: H=kAΔTlH=\frac{kA\Delta T}{l} Since: A=πr2A=\pi r^2 Therefore: H∝r2lH\propto \frac{r^2}{l} Maximum value occurs for: r=2r0, l=l0r=2r_0,\ l=l_0 Hence option (B) is correct.

  9. Question 9 (AIPMT 2005, Q9)

    NucleiMedium
    In the reaction 12H+13H→24He+01n^2_1H + ^3_1H \rightarrow ^4_2He + ^1_0n, if the binding energies of 12H^2_1H, 13H^3_1H and 24He^4_2He are respectively aa, bb and cc (in MeV), then the energy released in this reaction is:
    1. Option A: c+a−bc + a - b
    2. Option B: c−a−bc - a - b
    3. Option C: a+b+ca + b + c
    4. Option D: a+b−ca + b - c

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  10. Question 10 (AIPMT 2005, Q10)

    Moving Charges and MagnetismMedium
    A very long straight wire carries a current I. At the instant when a charge +Q at point P has velocity v⃗\vec{v}, as shown, the force on the charge is:”
    1. Option A: Opposite to OX
    2. Option B: Along OX
    3. Option C: Opposite to OY
    4. Option D: Along OY

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  11. Question 11 (AIPMT 2005, Q11)

    AtomsMedium
    Energy levels AA, BB and CC of a certain atom correspond to increasing values of energy, i.e. EA<EB<ECE_A < E_B < E_C. If λ1\lambda_1, λ2\lambda_2 and λ3\lambda_3 are wavelengths of radiations corresponding to transitions C→BC \to B, B→AB \to A and C→AC \to A respectively, which of the following relations is correct?
    1. Option A: λ3=λ1+λ2\lambda_3 = \lambda_1 + \lambda_2
    2. Option B: λ3=λ1λ2λ1+λ2\lambda_3 = \dfrac{\lambda_1 \lambda_2}{\lambda_1 + \lambda_2}
    3. Option C: λ1+λ2+λ3=0\lambda_1 + \lambda_2 + \lambda_3 = 0
    4. Option D: λ32=λ12+λ22\lambda_3^2 = \lambda_1^2 + \lambda_2^2

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  12. Question 12 (AIPMT 2005, Q12)

    Dual Nature of Radiation and MatterMedium
    The work functions for metals AA, BB and CC are respectively 1.92 eV1.92\,\mathrm{eV}, 2.0 eV2.0\,\mathrm{eV} and 5 eV5\,\mathrm{eV}. According to Einstein's equation, the metals which will emit photoelectrons for a radiation of wavelength 4100 A˚4100\,\text{\AA} are:
    1. Option A: none
    2. Option B: A only
    3. Option C: A and B only
    4. Option D: all the three metals

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  13. Question 13 (AIPMT 2005, Q13)

    NucleiMedium
    The nuclei of which one of the following pairs of nuclides are isotones?
    1. Option A: 3474Se, 3171Ga{}^{74}_{34}\mathrm{Se},\ {}^{71}_{31}\mathrm{Ga}
    2. Option B: 4292Mo, 4092Zr{}^{92}_{42}\mathrm{Mo},\ {}^{92}_{40}\mathrm{Zr}
    3. Option C: 3884Sr, 3886Sr{}^{84}_{38}\mathrm{Sr},\ {}^{86}_{38}\mathrm{Sr}
    4. Option D: 2040Ca, 1632S{}^{40}_{20}\mathrm{Ca},\ {}^{32}_{16}\mathrm{S}

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  14. Question 14 (AIPMT 2005, Q14)

    Electrostatic Potential and CapacitanceHard
    A point charge +q+q is placed at the origin OO. Work done in taking another point charge −Q-Q from point A(0,a)A(0,a) to point B(a,0)B(a,0) along the straight path ABAB is:
    1. Option A: Option 1
    2. Option B: Option 2
    3. Option C: Option 3
    4. Option D: Option 4

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  15. Question 15 (AIPMT 2005, Q15)

    Electromagnetic InductionMedium
    As a result of change in the magnetic flux linked to the closed loop shown in the figure, an emf VV volt is induced in the loop. The work done (in joules) in taking a charge QQ coulomb once along the loop is:
    1. Option A: QVQV
    2. Option B: zero
    3. Option C: 2QV2QV
    4. Option D: QV2\dfrac{QV}{2}

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  16. Question 16 (AIPMT 2005, Q16)

    Current ElectricityHard
    For the network shown in the figure, the value of current ii is:
    1. Option A: 9V7\dfrac{9V}{7}
    2. Option B: 5V18\dfrac{5V}{18}
    3. Option C: 9V7\dfrac{9V}{7}
    4. Option D: 18V5\dfrac{18V}{5}

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  17. Question 17 (AIPMT 2005, Q17)

    OscillationsEasy
    The circular motion of a particle with constant speed is:
    1. Option A: simple harmonic but not periodic
    2. Option B: periodic and simple harmonic
    3. Option C: neither periodic nor simple harmonic
    4. Option D: periodic but not simple harmonic

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  18. Question 18 (AIPMT 2005, Q18)

    OscillationsMedium
    A particle executing simple harmonic motion of amplitude 5 cm5\,\text{cm} has maximum speed of 31.4 cm/s31.4\,\text{cm/s}. The frequency of its oscillation is:
    1. Option A: 2 Hz2\,\text{Hz}
    2. Option B: 1.5 Hz1.5\,\text{Hz}
    3. Option C: 0.5 Hz0.5\,\text{Hz}
    4. Option D: 1 Hz1\,\text{Hz}

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  19. Question 19 (AIPMT 2005, Q19)

    Units and MeasurementsMedium
    The ratio of the dimensions of Planck's constant and that of the moment of inertia is the dimension of:
    1. Option A: frequency
    2. Option B: velocity
    3. Option C: angular momentum
    4. Option D: time

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  20. Question 20 (AIPMT 2005, Q20)

    ThermodynamicsEasy
    Which of the following processes is reversible?
    1. Option A: Transfer of heat by radiation
    2. Option B: Electrical heating of a nichrome wire
    3. Option C: Transfer of heat by conduction
    4. Option D: Isothermal compression

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  21. Question 21 (AIPMT 2005, Q21)

    ThermodynamicsMedium
    The temperature of inversion of a thermocouple is 620°C and the neutral temperature is 300°C. What is the temperature of cold junction?
    1. Option A: 20°C
    2. Option B: 120°C
    3. Option C: -20°C
    4. Option D: -120°C

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  22. Question 22 (AIPMT 2005, Q22)

    Dual Nature of Radiation and MatterMedium
    A photosensitive metallic surface has work function hν0h\nu_0. If photons of energy 2hν02h\nu_0 fall on this surface, the electrons come out with a maximum velocity of 4×106 m s−14 \times 10^6\ \mathrm{m\,s^{-1}}. When the photon energy is increased to 5hν05h\nu_0, then the maximum velocity of photoelectrons will be:
    1. Option A: 16×106 m s−116 \times 10^6\ \mathrm{m\,s^{-1}}
    2. Option B: 8×107 m s−18 \times 10^7\ \mathrm{m\,s^{-1}}
    3. Option C: 4×105 m s−14 \times 10^5\ \mathrm{m\,s^{-1}}
    4. Option D: 8×106 m s−18 \times 10^6\ \mathrm{m\,s^{-1}}

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  23. Question 23 (AIPMT 2005, Q23)

    NucleiEasy
    Fission of nuclei is possible because the binding energy per nucleon in them:
    1. Option A: increases with mass number at high mass numbers
    2. Option B: decreases with mass number at high mass numbers
    3. Option C: increases with mass number at low mass numbers
    4. Option D: decreases with mass number at low mass numbers

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  24. Question 24 (AIPMT 2005, Q24)

    Semiconductor ElectronicsEasy
    Application of a forward bias to a p-n junction:
    1. Option A: increases the number of donors on the n-side
    2. Option B: increases the electric field in the depletion zone
    3. Option C: increases the potential difference across the depletion zone
    4. Option D: widens the depletion zone

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  25. Question 25 (AIPMT 2005, Q25)

    OscillationsMedium
    The displacement xx of a particle varies with time tt as x=ae−αt+beβtx = ae^{-\alpha t} + be^{\beta t} where a, b, α and β are positive constants. The velocity of the particle will :
    1. Option A: go on decreasing with time
    2. Option B: be independent of α\alpha and β\beta
    3. Option C: drop to zero when α=β\alpha = \beta
    4. Option D: go on increasing with time

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  26. Question 26 (AIPMT 2005, Q26)

    Electrostatic Potential and CapacitanceHard
    Two charges q1q_1 and q2q_2 are placed 30 cm30\,\text{cm} apart, as shown in the figure. A third charge q3q_3 is moved along the arc of a circle of radius 40 cm40\,\text{cm} from CC to DD. The change in the potential energy of the system is where kk is:
    1. Option A: 8q28q_2
    2. Option B: 8q18q_1
    3. Option C: 4q24q_2
    4. Option D: 4q14q_1

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  27. Question 27 (AIPMT 2005, Q27)

    NucleiEasy
    In any fission process the ratio (mass of fission products/mass of parent nucleus) is :
    1. Option A: less than 1
    2. Option B: greater than 1
    3. Option C: equal to 1
    4. Option D: depends on the mass of parent nucleus

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  28. Question 28 (AIPMT 2005, Q28)

    ThermodynamicsMedium
    An ideal gas heat engine operates in Carnot cycle between 227°C and 127°C. It absorbs 6 × 10⁴ cal of heat at higher temperature. Amount of heat converted to work is:
    1. Option A: 2.4 × 10⁴ cal
    2. Option B: 3.6 × 10⁴ cal
    3. Option C: 1.2 × 10⁴ cal
    4. Option D: 6.4 × 10⁴ cal

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  29. Question 29 (AIPMT 2005, Q29)

    Motion in a PlaneMedium
    If a vector 2i^+3j^+8k^2\hat{i}+3\hat{j}+8\hat{k} is perpendicular to the vector 4j^−4i^+αk^4\hat{j}-4\hat{i}+\alpha\hat{k} then the value of α\alpha is:
    1. Option A: -2
    2. Option B: 1/2
    3. Option C: -1/2
    4. Option D: 2

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  30. Question 30 (AIPMT 2005, Q30)

    Semiconductor ElectronicsEasy
    Zener diode is used for:
    1. Option A: producing oscillations in an oscillator
    2. Option B: amplification
    3. Option C: stabilisation
    4. Option D: rectification

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  31. Question 31 (AIPMT 2005, Q31)

    Work, Energy and PowerMedium
    A force F acting on an object varies with distance x as shown here. The force is in N and x is in m. The work done by the force in moving the object from x = 0 to x = 6 m is :
    1. Option A: 10.5 J
    2. Option B: 13.5 J
    3. Option C: 8.5 J
    4. Option D: 6.5 J

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  32. Question 32 (AIPMT 2005, Q32)

    OscillationsMedium
    A stone tied to the end of a string 1 m long is whirled in a horizontal circle with constant speed. If the stone makes 22 revolutions in 44 s, what is the magnitude and direction of acceleration of the stone?
    1. Option A: π²/4 m/s² and direction along the radius towards the centre
    2. Option B: 2π² m/s² and direction along the radius away from centre
    3. Option C: π² m/s² and direction along the radius towards the centre
    4. Option D: 4π² m/s² and direction along the tangent to the circle

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  33. Question 33 (AIPMT 2005, Q33)

    Magnetism and MatterEasy
    If the magnetic dipole moment of an atom of diamagnetic material, paramagnetic material and ferromagnetic material is denoted by μd\mu_d, μp\mu_p and μf\mu_f respectively, then
    1. Option A: μd≠0\mu_d \ne 0 and μf≠0\mu_f \ne 0
    2. Option B: μp=0\mu_p = 0 and μf≠0\mu_f \ne 0
    3. Option C: μd=0\mu_d = 0 and μp≠0\mu_p \ne 0
    4. Option D: μd≠0\mu_d \ne 0 and μp=0\mu_p = 0
    Show answer & explanation

    Correct answer: (C) μd=0\mu_d = 0 and μp≠0\mu_p \ne 0

    Explanation

    Diamagnetic substances have zero resultant magnetic dipole moment per atom because all electron magnetic moments are paired and cancel each other. Therefore μd=0\mu_d = 0. Paramagnetic substances have atoms with unpaired electrons, so each atom possesses a non-zero magnetic dipole moment. Therefore μp≠0\mu_p \ne 0. Hence option A is correct.

  34. Question 34 (AIPMT 2005, Q34)

    Alternating CurrentMedium
    In a circuit, LL, CC and RR are connected in series with an alternating voltage source of frequency ff. The current leads the voltage by 45∘45^\circ. The value of CC is:
    1. Option A: 12πf(2πfL+R)\dfrac{1}{2\pi f(2\pi fL + R)}
    2. Option B: 1πf(2πfL+R)\dfrac{1}{\pi f(2\pi fL + R)}
    3. Option C: 12πf(2πfL−R)\dfrac{1}{2\pi f(2\pi fL - R)}
    4. Option D: 1πf(2πfL−R)\dfrac{1}{\pi f(2\pi fL - R)}

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  35. Question 35 (AIPMT 2005, Q35)

    Ray Optics and Optical InstrumentsMedium
    The angular resolution of a 10 cm diameter telescope at wavelength 5000 Å is of the order of:
    1. Option A: 10⁶ rad
    2. Option B: 10⁻⁴ rad
    3. Option C: 10⁴ rad
    4. Option D: 10⁻⁶ rad

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  36. Question 36 (AIPMT 2005, Q36)

    WavesMedium
    Two vibrating tuning forks produce progressive waves given by y₁ = 4 sin 500πt and y₂ = 2 sin 506πt. Number of beats produced per minute is:
    1. Option A: 360
    2. Option B: 180
    3. Option C: 120
    4. Option D: 30

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  37. Question 37 (AIPMT 2005, Q37)

    Current ElectricityMedium
    When a wire of uniform cross-section, length l and resistance R is bent into a complete circle, the resistance between two diametrically opposite points is:
    1. Option A: R/4
    2. Option B: 2R
    3. Option C: 4R
    4. Option D: R/2

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  38. Question 38 (AIPMT 2005, Q38)

    Semiconductor ElectronicsEasy
    Carbon, silicon and germanium atoms have four valence electrons each. Their valence and conduction bands are separated by energy band gaps represented by (Eg)C(E_g)_C, (Eg)Si(E_g)_{Si} and (Eg)Ge(E_g)_{Ge} respectively. Which one of the following relationships is true in their case?
    1. Option A: (Eg)C>(Eg)Si(E_g)_C > (E_g)_{Si}
    2. Option B: (Eg)C=(Eg)Si(E_g)_C = (E_g)_{Si}
    3. Option C: (Eg)C<(Eg)Ge(E_g)_C < (E_g)_{Ge}
    4. Option D: (Eg)C<(Eg)Si(E_g)_C < (E_g)_{Si}

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  39. Question 39 (AIPMT 2005, Q39)

    Electromagnetic WavesEasy
    If λv\lambda_v, λx\lambda_x and λm\lambda_m represent the wavelengths of visible light, X-rays and microwaves respectively, then:
    1. Option A: λm>λx>λv\lambda_m > \lambda_x > \lambda_v
    2. Option B: λv>λm>λx\lambda_v > \lambda_m > \lambda_x
    3. Option C: λm>λv>λx\lambda_m > \lambda_v > \lambda_x
    4. Option D: λv>λx>λm\lambda_v > \lambda_x > \lambda_m

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  40. Question 40 (AIPMT 2005, Q40)

    Motion in a PlaneMedium
    Two boys are standing at the ends A and B of a ground, where AB=aAB = a. The boy at B starts running in a direction perpendicular to ABAB with velocity v1v_1. The boy at A starts running simultaneously with velocity vv and catches the other boy in a time tt. Then tt is:
    1. Option A: av2+v12\dfrac{a}{\sqrt{v^2 + v_1^2}}
    2. Option B: av2−v12\dfrac{a}{\sqrt{v^2 - v_1^2}}
    3. Option C: av−v1\dfrac{a}{v - v_1}
    4. Option D: av+v1\dfrac{a}{v + v_1}

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  41. Question 41 (AIPMT 2005, Q41)

    Current ElectricityMedium
    A 5-A fuse wire can withstand a maximum power of 1 W in circuit. The resistance of the fuse wire is:
    1. Option A: 0.02 Ω
    2. Option B: 0.2 Ω
    3. Option C: 0.4 Ω
    4. Option D: 0.04 Ω

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  42. Question 42 (AIPMT 2005, Q42)

    System of Particles and Rotational MotionMedium
    Two bodies have moments of inertia I and 2I respectively about their axes of rotation. If their kinetic energies of rotation are equal, their angular momenta will be in the ratio:
    1. Option A: 1 : 4
    2. Option B: √2 : 1
    3. Option C: 4 : 1
    4. Option D: 1 : √2

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  43. Question 43 (AIPMT 2005, Q43)

    Moving Charges and MagnetismHard
    An electron moves in a circular orbit with uniform speed v. It produces a magnetic field B at the centre of the circle. The radius of the circle is proportional to:
    1. Option A: B/v
    2. Option B: v/B
    3. Option C: √(v/B)
    4. Option D: √(B/v)

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  44. Question 44 (AIPMT 2005, Q44)

    Semiconductor ElectronicsEasy
    Choose the only false statement from the following.
    1. Option A: Substances with energy gap of the order of 10 eV are insulators
    2. Option B: The conductivity of a semiconductor increases with increase in temperature
    3. Option C: In conductors the valence and conduction bands may overlap
    4. Option D: The resistivity of a semiconductor increases with increase in temperature

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  45. Question 45 (AIPMT 2005, Q45)

    Motion in a PlaneEasy
    If the angle between the vectors A⃗\vec{A} and B⃗\vec{B} is θ\theta, the value of the product (B⃗×A⃗)⋅A⃗(\vec{B} \times \vec{A}) \cdot \vec{A} is equal to:
    1. Option A: BA2cos⁡2θBA^2 \cos^2 \theta
    2. Option B: BA2sin⁡2θBA^2 \sin^2 \theta
    3. Option C: BA2sin⁡θcos⁡θBA^2 \sin \theta \cos \theta
    4. Option D: zero

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  46. Question 46 (AIPMT 2005, Q46)

    System of Particles and Rotational MotionMedium
    The moment of inertia of a uniform circular disc of radius RR and mass MM about an axis passing through the edge of the disc and normal to the disc is:
    1. Option A: 52MR2\dfrac{5}{2}MR^2
    2. Option B: MR2MR^2
    3. Option C: 72MR2\dfrac{7}{2}MR^2
    4. Option D: 32MR2\dfrac{3}{2}MR^2

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  47. Question 47 (AIPMT 2005, Q48)

    AtomsEasy
    The total energy of an electron in the first excited state of hydrogen is about −3.4 eV-3.4\,\text{eV}. Its kinetic energy in this state is:
    1. Option A: −3.4 eV-3.4\,\text{eV}
    2. Option B: −1.7 eV-1.7\,\text{eV}
    3. Option C: 1.7 eV1.7\,\text{eV}
    4. Option D: 3.4 eV3.4\,\text{eV}

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  48. Question 48 (AIPMT 2005, Q49)

    GravitationEasy
    For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is:
    1. Option A: 44
    2. Option B: 12\dfrac{1}{2}
    3. Option C: 12\dfrac{1}{\sqrt{2}}
    4. Option D: 14\dfrac{1}{4}

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  49. Question 49 (AIPMT 2005, Q50)

    Motion in a Straight LineMedium
    A ball is thrown vertically upward. It has a speed of 10 m/s10\,\text{m/s} when it has reached one half of its maximum height. How high does the ball rise? (Take g=10 m/s2g = 10\,\text{m/s}^2)
    1. Option A: 6 m6\,\text{m}
    2. Option B: 10 m10\,\text{m}
    3. Option C: 14 m14\,\text{m}
    4. Option D: 18 m18\,\text{m}

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