Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

A radioactive nucleus undergoes alpha emission to form a stable element. what will be the recoil ve;locity of the daughter nucleus if V is the velocity of alpha emission and A is the atomic mass of radioactive nucleus? A radioactive material decays by simultaneous emission of two particles with respective half lives 1620 and 810 [...]

For a substance the average life for alpha emission is 1620 years and for beta emission is 405 years. After how much time the 1/4 of the material remains after alpha and beta emission For a substance the average life for alpha emission is 1620 years and for beta emission is 405 years. After how [...]

A radioactive material decays by simultaneous emission of two particles with respective half lives 1620 and 810 years. The times in years after which one – four of the material remains is A radioactive material decays by simultaneous emission of two particles with respective half lives 1620 and 810 years. The times in years after [...]

The half life of radium is 1620 years and its atomic weight is 226 kgm per kilomol. The number of atoms that will decay from its 1 gm sample per second will be The half life of radium is 1620 years and its atomic weight is 226 kgm per kilomol. The number of atoms that [...]

A radioactive isotope X with a half life of 1.37 x 10^9 years decays to Y which is stable. A sample of rock from the moon was found to contain both the element X and Y which were in the ratio of 1 : 7. The age of the rock is Three alpha particles and [...]

If 10 percent of a radioactive material decays in 5 days, then the amount of original material left after 20 days is approximately If 10 percent of a radioactive material decays in 5 days then the amount of original material left after 20 days is approximately September 14, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

Radon (Ra) decays into Polonium (P0) by emitting an α−particle with half-life of 4 days. A sample contains 6.4×1010 atoms of Rn. After 12 days, the number of atoms of Rn left in the sample will be Radon (Ra) decays into Polonium (P0) by emitting an α−particle with half-life of 4 days. A sample contains [...]

Three alpha particles and one beta particles decaying takes place in series from isotope 88 R 238. Finally the isotope obtained will be Three alpha particles and one beta particles decaying takes place in series from isotope 88 R 238. Finally the isotope obtained will be September 14, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

A radioisotope has a half life of 5 years. The fraction of the atoms of this material that would decay in 15 years will be A radioisotope has a half life of 5 years. The fraction of the atoms of this material that would decay in 15 years will be September 14, 2020 Category: Uncategorised [...]

A sample contains 16 gm of a radioactive material, the half life of which is two days. After 32 days, the amount of radioactive material left in the sample is A sample contains 16 gm of a radioactive material the amount of radioactive material left in the sample is the half life of which is [...]