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JEE Nuclear Physics PYQs with Solutions

10 previous year questions from Nuclear Physics (JEE Main & Advanced NSEP) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

10 questionsNSEPAnswers + solutions

About Nuclear Physics PYQs

Nuclear Physics has 10 previous year questions in the Quantrex Academy JEE Main & Advanced NSEP bank. The 10 questions in this list come from Olympiad workbook (10). Each question opens on its own page with the options, the correct answer and the worked solution where available.

Nuclear Physics questions with solutions

The half-life period of a radioactive element E_1 is equal to the mean lifetime of another radioactive element E_2 . Initially both the elements have the same number of atoms.

Olympiad workbook Solution View → 2

The fraction of the original number of nuclei of a radioactive atom having a mean life of 10 days, that decays during the 5^ th day is

Olympiad workbook Solution View → 3

Natural Uranium is a mixture of _ 92 ^ 238 U and _ 92 ^ 235 U with a relative mass abundance of 140: 1 . The ratio of radioactivity contributed by the two isotopes of natural

Olympiad workbook Solution View → 4

If the specific activity of C^ 14 nuclide in a certain ancient wooden toy is known to be (3)/(5) of that in a recently fallen tree of the same class, the age of the ancient wooden

Olympiad workbook Solution View → 5

When a sample of atoms is irradiated by neutrons, radioactive atoms are produced at a constant rate R , which decay with decay constant λ . The number of radioactive atoms

Olympiad workbook Solution View → 6

Fission of one nucleus of ^ 235 U releases 200 MeV energy in average. Minimum amount of ^ 235 U required to run 1000 MW reactor per year of continuous operation (assuming 30 \%

Olympiad workbook Solution View → 7

The Nucleus _ 10 ^ 23 Ne decays by β- emission through the reaction _ 10 ^ 23 Ne arrow _ 11 ^ 23 Na+ _ -1 ^0 β+ v + energy The atomic masses are _ 10 ^ 23 Ne=22.994466 u and _ 11

Olympiad workbook Solution View → 8

Heavy stable nuclei have more neutrons than protons. This is because of the fact that

Olympiad workbook Solution View → 9

A target of ^7 Li is bombarded with a proton beam of current 10^ -4 ampere for 1 hour to produce ^7 Be of activity 1.8 × 10^8 disintegrations per second. Assuming that bombarding

Olympiad workbook Solution View → 10

Two nuclides A and B are isotopes. The nuclides B and C are isobars. All the three nuclides A, B and C are radioactive. You may then conclude that

Olympiad workbook Solution View →

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Main Nuclear Physics list

The larger JEE Nuclear Physics list is under Physics (389 questions).

Related JEE NSEP chapters

Ray Optics (48)Electrostatics (33)Rotational Motion (32)Current Electricity (25)Waves and Sound (25)Mechanical Properties of Fluids (24)Magnetic Effects of Current (23)Dual Nature of Matter (20)Work, Power and Energy (18)Semiconductors (17)Oscillations (17)Thermodynamics (17)

Nuclear Physics in other exams

NEET Nuclear Physics (341)BITSAT Nuclear Physics (18)