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Nuclear Physics — BITSAT Physics PYQs

18 previous year questions from Nuclear Physics with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

18 questionsPhysicsSolutions on every page

The atomic mass of ₆ C ¹² is 12.000000 u and that of ₆ C ¹³ is 13.003354 u . The required energy to remove a neutron from ₆ C ¹³ , if mass of neutron is 1.008665 u , will be:

BITSAT 2024 Solution View → 2

The nucleus having highest binding energy per nucleon is

BITSAT 2024 Solution View → 3

Two radioactive elements A and B initially have same number of atoms. The half life of A is same as the average life of B . If _A and _B are decay constants of A and B respectively

BITSAT 2023 Solution View → 4

A radio-active material is reduced to 1 / 8 of its original amount in 3 days. If 8 10⁻³ ~kg of the material is left after 5 days. The initial amount of the material is

BITSAT 2023 Solution View → 5

In a radioactive material the activity at time t₁ , is A₁ and at a later time t₂ , it is A₂ . If the decay constant of the material is , then

BITSAT 2022 Solution View → 6

Three specimens A, B, C of same radioactive element has activities 1 microcurie, 1 rutherford and 1 becquerel respectively. Which specimen has maximum mass?

BITSAT 2021 Solution View → 7

A radioactive sample of half life 23 . 1 days is disintegrating continuously. The percentage decay of the sample between the 15 th and 16 th day will be [Take, e 0 . 03 = 1 . 03 ]

BITSAT 2019 Solution View → 8

Some amount of a radioactive substance (half-life = 10 days ) is spread inside a room and consequently, the level of radiation becomes 50 times the permissible level for normal occ

BITSAT 2018 Solution View → 9

The activity of a radioactive sample is measured as N 0 counts per minute at t = 0 and N 0 e counts per minute at t = 5 min . The time (in minutes) at which the activity reduces to

BITSAT 2017 Solution View → 10

A radioactive element X converts into another stable element Y. Half life of X is 2 hrs . Initially only X is present. After time t , the ratio of atoms of X and Y is found to be 1

BITSAT 2016 Solution View → 11

The mass of ₇ ~N ¹⁵ is 15.00011 amu , mass of ₈ O ¹⁶ is 15.99492 amu and m_ p =1.00783 amu. Determine binding energy of last proton of ₈ O ¹⁶ .

BITSAT 2016 Solution View → 12

In an ore containing uranium, the ratio of U²³⁸ to Pb ²⁰⁶ is 3. Calculate the àge of the ore, assuming that all the lead present in the ore is the final stable product of U²³⁸ . Ta

BITSAT 2015 Solution View → 13

A nucleus of uranium decays at rest into nuclei of thorium and helium. Then :

BITSAT 2014 Solution View → 14

Let binding energy per nucleon of nucleus is denoted by E _ bn and radius of nucleus is denoted as r . If mass number of nuclei A , B and 64 and 125 respectively then

BITSAT 2014 Solution View → 15

If the total binding energies of ₁² H , ₂⁴ He , ₂₆⁵⁶ Fe & ₉₂²³⁵ U nuclei are 2.22,28.3,492 and 1786 MeV respectively, identify the most stable nucleus of the following.

BITSAT 2012 Solution View → 16