AIPMT 2007 · Physics

AIPMT 2007 Physics Questions with Solutions

The AIPMT 2007 paper had 21 Physics questions from 14 chapters.

Waves had the most questions (3), followed by Dual Nature of Radiation and Matter, Electromagnetic Induction and 3 other chapters with 2 each.

1 question below has the answer and explanation free; the other 20 are in Premium.

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Physics questions: 21
Chapters covered: 14
Solved free here: 1 of 21
Easy / Medium / Hard: 2 / 7 / 12

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

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All 21 AIPMT 2007 Physics questions

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

Question 1 (AIPMT 2007, Q1)
Dual Nature of Radiation and MatterHard
How many photons of wavelength 439 nm should strike on a perfectly reflecting surface in 1 second so that it may exert a force of 10 N?
1. Option A: 1.66 × 10²⁷ photons
2. Option B: 3.31 × 10²⁷ photons
3. Option C: 6.62 × 10²⁷ photons
4. Option D: 9.93 × 10²⁷ photons
The answer and explanation for this question are in NEET MIND Premium.
Question 2 (AIPMT 2007, Q2)
ThermodynamicsEasy
Can water be boiled without heating?
1. Option A: No, heating is always necessary.
2. Option B: Yes, by increasing atmospheric pressure.
3. Option C: Yes, by reducing the external pressure sufficiently.
4. Option D: Yes, by continuously stirring the water.
The answer and explanation for this question are in NEET MIND Premium.
Question 3 (AIPMT 2007, Q3)
WavesMedium
Equation for two waves is given as y₁ = a sin(ωt + φ₁), y₂ = a sin(ωt + φ₂). If amplitude and time period of resultant wave do not change, then calculate (φ₁ − φ₂).
1. Option A: 0
2. Option B: π/2
3. Option C: π
4. Option D: 2π/3
The answer and explanation for this question are in NEET MIND Premium.
Question 4 (AIPMT 2007, Q4)
Electrostatic Potential and CapacitanceHard
A solid sphere of radius a having charge q is placed inside a spherical shell of inner radius r and outer radius R. Find the potential at distance x, where r < x < R.
1. Option A: kq/R
2. Option B: kq/r
3. Option C: kq/x
4. Option D: 0
The answer and explanation for this question are in NEET MIND Premium.
Question 5 (AIPMT 2007, Q5)
ThermodynamicsMedium
For a monoatomic ideal gas, the ratio of specific heats γ is equal to:
1. Option A: 5/3
2. Option B: 7/5
3. Option C: 4/3
4. Option D: 3/2
The answer and explanation for this question are in NEET MIND Premium.
Question 6 (AIPMT 2007, Q6)
Semiconductor ElectronicsMedium
The logic circuit shown below produces output Y. Determine the truth table and identify the equivalent logic operation.
1. Option A: Y = A AND B
2. Option B: Y = A OR B
3. Option C: Y = A XOR B
4. Option D: Y = A XNOR B
The answer and explanation for this question are in NEET MIND Premium.
Question 7 (AIPMT 2007, Q7)
NucleiEasy
Which of the following is a correct difference between nuclear force and Coulomb force?
1. Option A: Nuclear force is short-range, whereas Coulomb force is long-range.
2. Option B: Both nuclear and Coulomb forces are short-range.
3. Option C: Nuclear force acts only between charged particles.
4. Option D: Coulomb force is independent of charge.
The answer and explanation for this question are in NEET MIND Premium.
Question 8 (AIPMT 2007, Q8)
Motion in a PlaneHard
An airplane is moving horizontally with speed 100 m/s at a height of 2000 m from the ground. A small object is detached from it and strikes the ground. Calculate the angle from the vertical with which it strikes the ground.
1. Option A: 14°
2. Option B: 27°
3. Option C: 45°
4. Option D: 63°
The answer and explanation for this question are in NEET MIND Premium.
Question 9 (AIPMT 2007, Q9)
Units and MeasurementsMedium
Which of the following quantities have the same dimensional formula?
1. Option A: Angular momentum and impulse
2. Option B: Energy and torque
3. Option C: Force and moment of inertia
4. Option D: Angular momentum and energy
The answer and explanation for this question are in NEET MIND Premium.
Question 10 (AIPMT 2007, Q10)
System of Particles and Rotational MotionHard
A uniform rod is hinged at one end as shown in the figure. When the support is withdrawn, what is the acceleration of the center of mass immediately after release?
1. Option A: g/2
2. Option B: 3g/4
3. Option C: g
4. Option D: 3g/8
The answer and explanation for this question are in NEET MIND Premium.
Question 11 (AIPMT 2007, Q11)
WavesMedium
Two stretched wires each produce a frequency of 500 Hz. By what percentage should the tension in one wire be increased so that 5 beats per second are heard?
1. Option A: 1%
2. Option B: 2%
3. Option C: 4%
4. Option D: 8%
The answer and explanation for this question are in NEET MIND Premium.
Question 12 (AIPMT 2007, Q12)
Moving Charges and MagnetismHard
Find the force on the conductor carrying current i as shown in the figure.
1. Option A: μ₀Ii/(2π) ln[(x + l)/x]
2. Option B: μ₀Ii/(2π) ln[x/(x + l)]
3. Option C: μ₀Ii/(2πx)
4. Option D: μ₀Ii·l/(2πx²)
The answer and explanation for this question are in NEET MIND Premium.
Question 13 (AIPMT 2007, Q13)
Electrostatic Potential and CapacitanceMedium
A conducting cone is given charge q. How do the charge density and electric potential vary at different points of the cone?
1. Option A: Charge density is uniform and potential varies from point to point.
2. Option B: Charge density is maximum near the tip and potential is constant throughout the conductor.
3. Option C: Charge density is minimum near the tip and potential varies linearly.
4. Option D: Both charge density and potential are uniform everywhere.
The answer and explanation for this question are in NEET MIND Premium.
Question 14 (AIPMT 2007, Q14)
Current ElectricityHard
When 4 A current flows through a battery from positive to negative terminal, the terminal potential difference is 12 V. When 2 A current passes from negative to positive terminal of the battery, the terminal potential difference is 9 V. Calculate the emf and internal resistance of the battery.
1. Option A: E = 10 V, r = 0.5 Ω
2. Option B: E = 10 V, r = 1 Ω
3. Option C: E = 8 V, r = 1 Ω
4. Option D: E = 12 V, r = 0.5 Ω
The answer and explanation for this question are in NEET MIND Premium.
Question 15 (AIPMT 2007, Q15)
System of Particles and Rotational MotionHard
A pulley of radius 20 cm and moment of inertia 0.32 kg·m² is used to hang a 2 kg mass with a massless string. If the load is released from rest, calculate the acceleration of the block.
1. Option A: 0.95 m/s²
2. Option B: 1.11 m/s²
3. Option C: 2.00 m/s²
4. Option D: 4.90 m/s²
The answer and explanation for this question are in NEET MIND Premium.
Question 16 (AIPMT 2007, Q16)
Electromagnetic InductionHard
A capacitor of capacitance 6 μF is charged by a 6 V battery. It is then connected to an inductor of 5 mH. Find the current in the inductor when one-third of the total energy is magnetic.
1. Option A: 0.098 A
2. Option B: 0.170 A
3. Option C: 0.294 A
4. Option D: 0.588 A
The answer and explanation for this question are in NEET MIND Premium.
Question 17 (AIPMT 2007, Q17)
Motion in a Straight LineHard
An object is thrown vertically upward with some speed. It crosses two points p, q which are separated by h metre. If tₚ is the time between p and highest point and coming back, and t $_q$ is the time between q and highest point and coming back, relate acceleration due to gravity g, tₚ, t $_q$ and h.
1. Option A: g = 8h/(tₚ² − t $_q$ ²)
2. Option B: g = 4h/(tₚ² − t $_q$ ²)
3. Option C: g = 2h/(tₚ² − t $_q$ ²)
4. Option D: g = h/(tₚ² − t $_q$ ²)
The answer and explanation for this question are in NEET MIND Premium.
Question 18 (AIPMT 2007, Q18)
Electromagnetic InductionHard
Two coils m and n having 10 turns and 15 turns respectively are placed close to each other. When 2 A current is passing through coil m, the flux linked in coil n is 1.8 × 10⁻⁴ Wb per turn. If 3 A current is passed through coil n, calculate the flux linked per turn of coil m.
1. Option A: 1.2 × 10⁻⁴ Wb
2. Option B: 1.8 × 10⁻⁴ Wb
3. Option C: 2.4 × 10⁻⁴ Wb
4. Option D: 4.05 × 10⁻⁴ Wb
The answer and explanation for this question are in NEET MIND Premium.
Question 19 (AIPMT 2007, Q19)
WavesHard
A string having tension 360 N and mass per unit length 4 × 10⁻³ kg/m produces two consecutive resonant frequencies with a tuning fork, which are 375 Hz and 450 Hz. Find the mass of the string.
1. Option A: 8 g
2. Option B: 16 g
3. Option C: 24 g
4. Option D: 32 g
The answer and explanation for this question are in NEET MIND Premium.
Question 20 (AIPMT 2007, Q20)
Dual Nature of Radiation and MatterHard
In photoelectric effect, a photon of wavelength 3300 Å is incident on a metal surface of work function 2.5 eV. The emitted electrons enter a transverse magnetic field of 6.7 × 10⁻⁶ T and move in a circular path of radius 50 cm. Calculate the charge of the electron from the given data.
1. Option A: 1.6 × 10⁻¹⁹ C
2. Option B: 3.2 × 10⁻¹⁹ C
3. Option C: 8.0 × 10⁻²⁰ C
4. Option D: 4.8 × 10⁻¹⁹ C
The answer and explanation for this question are in NEET MIND Premium.
Question 21 (AIPMT 2007, Q21)
Magnetism and MatterMedium
If the temperature and magnetic field applied across a paramagnetic substance are both tripled, by how many times will the intensity of magnetization change?
1. Option A: 1/3 times
2. Option B: 1 time (unchanged)
3. Option C: 3 times
4. Option D: 9 times
Show answer & explanationHide answer & explanation
Correct answer: (B) 1 time (unchanged)
Explanation
For a paramagnetic substance, Curie's law gives M ∝ H/T. If both magnetic field H and temperature T are tripled, then M' ∝ (3H)/(3T) = H/T. Therefore the intensity of magnetization remains unchanged.

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AIPMT 2007 Physics Questions with Solutions

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