Physics Chapter PYQs

Nuclei PYQs

All NEET previous year questions from Nuclei — with explanations.

2Total PYQs

1Years

0Easy

2Medium

0Hard

Year:

Difficulty:2 questions

12013

The half life of a radioactive isotope $X$ is $20$ years. It decays to another element $Y$ which is stable. The two elements $X$ and $Y$ were found to be in the ratio $1:7$ in a sample of a given rock. The age of the rock is estimated to be

Medium NEET 2013Class 12Radioactive Decay Law

22013

A certain mass of Hydrogen is changed to Helium by the process of fusion. The mass defect in fusion reaction is $0.02866\,u$ . The energy liberated per $u$ is (given $1\,u = 931\,\text{MeV}$ )

Medium NEET 2013Class 12Nuclear Binding Energy

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