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Physics - Nuclear Physics

Practise 199 NEET NTA questions on Nuclear Physics. Each question shows a quick preview so you can jump straight to the topic you want to revise.

Nuclear Physics has been asked in 0 of the 38 years of NEET NTA papers analysed (1988–2025), with 199 questions in all. 100% of them were easy, 0% moderate and 0% tough. Most of its questions came from 2025, with 0 questions that year. In the last three years (2023–2025) it had 0 questions across 6 papers, about 0 per paper.

All of the chapter's questions come from a single topic, Uncategorized.

  1. 1A sample of 18 F is used internally as a medical diagnostic tool to look for the effects of the positron decay ( T 1 2 = 110 min ) . How lon
  2. 2When a radioactive isotope 88 R 228 decay in series by the emission of 3 α -particles and β -particle, the isotope finally formed is
  3. 3Half lives of two isotopes X and Y of a material are known to be 2 × 10 9 years and 4 × 10 9 years respectively. If a planet was formed with
  4. 4Ne 22 nucleus, after absorbing energy, decays into two α -particles and an unknown nucleus. The unknown nucleus is
  5. 592 U 235 undergoes successive disintegrations with the end product of 82 P b 203 . The number of α a n d β - particles emitted are
  6. 6What is the resulting nucleus when a nucleus X n m emits one α particle and two β - particles?
  7. 7A particle moving with a velocity 1 10 t h of that of light will cross a nucleus in about
  8. 8A radioactive substance X decays into another radioactive substance Y. Initially only X was present. λ x and λ y are the disintegration cons
  9. 9Select the true statement from the following. Nuclear force is
  10. 10The half-life of a radioactive substance is 30 min . The time (in minutes) taken between 40 % decay and 85 % decay of the same radioactive s
  11. 11A sample of the radioactive element has a mass of 10 g at an instant t = 0 . The approximate mass of this element in the sample after two me
  12. 12In a nuclear reactor, the fuel is consumed at the rate of 1 m g s - 1 . The power generated in kilowatt is
  13. 13An α - particle of energy 5 MeV is scattered through 180 ° by a fixed Uranium nucleus. The distance of the closest approach is (Atomic numbe
  14. 14A radioactive nucleus A with a half-life T , decays into a nucleus B . At t = 0 , there is no nucleus B . At some time t , the ratio of the
  15. 15The activity of a sample of radioactive material is A 1 at time t 1 and A 2 at time t 2 t 2 t 1 . Its mean life is T. Which of the following
  16. 16When 3 L i 7 nuclei are bombarded by protons, and the resultant nuclei are 4 B e 8 , the emitted particles will be
  17. 17Starting with a sample of pure 66 C u , 7 8 of it decays into Zn in 15 min . The corresponding half-life is
  18. 18Two lithium nuclei in a lithium vapour at room temperature do not combine to form a carbon nucleus because
  19. 19In which of the following decays the element does not change?
  20. 20If a star can convert all the He nuclei completely into oxygen nuclei, the energy released per oxygen nuclei is ( Mass of the nucleus is 4 .
  21. 21The half life period of a radioactive substance is 140 days. After how much time, 15 g will decay from a 16 g sample of the substance?
  22. 22A radioactive sample S 1 having the activity A 1 has twice the number of nuclei as another sample S 2 of activity A 2 . If A 2 = 2 A 1 , the
  23. 23What is the binding energy per nucleon of C 12 6 nucleus? Given : mass of C 12 ( m c = 12 . 000 u ) mass of proton ( m p ) = 1 . 0078 u mass
  24. 24An α - particle of energy 5 MeV is scattered through 180 ° by a fixed Uranium nucleus. The distance of the closest approach is (Atomic numbe
  25. 25If a proton and anti-proton come close to each other and annihilate, how much energy will be released?
  26. 26Three α - p a r t i c l e s combine to form a 12 C nucleus, the mass defect is (atomic mass of 2 H e 4 is 4 . 002603 u )
  27. 27In a radioactive material, the activity at time t 1 is R 1 and at a later time t 2 , it is R 2 . If the decay constant of the material is λ
  28. 28The triad of nuclei that is isotonic is
  29. 29Using the following data Mass hydrogen atom = 1 . 00783 u Mass of neutron = 1 . 00867 u Mass of nitrogen atom ( 7 N 14 )= 14 . 00307 u The c
  30. 30A moving positron and electron both with kinetic energy 1 MeV annihilate with each other and emits two gamma photons. If the rest mass energ
  31. 31A freshly prepared radioactive source of half-life 2 hours emits radiation of intensity which is 64 times the permissible safe level. The mi
  32. 32A nucleus disintegrates into two nuclear parts which have their velocities in the ratio 2 : 1 . The ratio of their nuclear size will be
  33. 33For pair production i.e. for the production of electron and positron, the incident photon must have a minimum frequency of the order of
  34. 34The energy released by the fission of one 92 U 235 atom is 200 MeV . Calculate the energy released in kWh , when 1 g of U 235 undergoes fiss
  35. 35Cadmium rods are used in a nuclear reactor for
  36. 36A neutron is moving with velocity u . It collides head-on and elastically with an atom of mass number A . If the initial kinetic energy of t
  37. 37The half-life of At 215 is 100 μs . The time taken for the radioactivity of a sample of At 215 to decay to 1 1 6 th of its initial value is
  38. 38In a radioactive disintegration, the ratio of the initial number of atoms to the number of atoms present at an instant of time equal to its
  39. 39Half-lives of two radioactive substances A and B are respectively 20 min . and 40 min . Initially, the samples of A and B have equal number
  40. 40The mass of a 3 7 Li nucleus is 0 . 042 u less than the sum of the masses of all its nucleons. The binding energy per nucleon of 3 7 Li nucl
  41. 41Following process is known as h v ↔ e + + e -
  42. 42One milligram of matter converted into energy will give
  43. 43A nucleus n m ⁡ X ⁡ emits one α particle and two β - particles. The resulting nucleus is
  44. 44Consider the nuclear reaction X 200 → A 110 + B 80 . If the binding energy per nucleon for X , A and B are 7.4 MeV , 8.2 MeV and 8.1 MeV , r
  45. 45The half-life period of a radioactive element X is the same as the mean lifetime of another radioactive element Y . Initially, they have the
  46. 46If N 0 is the initial mass of a substance with half-life t 1 2 = 5 y e a r s , then the amount of substance left after 15 y e a r s is
  47. 47A sample of I 51 131 as iodine ion was administered to a patient in a carrier consisting of 0.10 mg of stable iodine ion. After 4 days 67.7
  48. 48When a free neutron decays to form a proton and an electron, then choose the incorrect statement
  49. 49F p p , F n n a n d F n p are the nuclear forces between proton-proton, neutron-neutron and neutron-proton respectively. Then relation betwe
  50. 50If the binding energy per nucleon in 3 L i 7 and 2 He 4 nuclei are respectively 5 . 60 MeV and 7 . 06 MeV , then the energy of the proton in

Frequently Asked Questions

1.How many questions are available for Nuclear Physics?

This chapter includes 199 NEET NTA questions.

2.Are these questions only from NEET NTA, or from other exams too?

These are NEET NTA questions specifically for the Nuclear Physics chapter. Questions from other exams like NEET or AIIMS are organised separately under their respective exam sections.

3.What is the difficulty level of Nuclear Physics questions in NEET NTA?

Of the 199 questions analysed for this chapter, 100% are easy, 0% moderate and 0% tough. 2025 had the most, with 0 questions.

4.Which topics in Nuclear Physics should I focus on?

All of this chapter's questions come from a single topic: Uncategorized.