When an atomic nucleus emits `gamma`-rays then

Why does a nucleus emit a gamma -ray photon?

An excited nucleus emits a gamma-ray photon with energy of 2.45 MeV. (a) What is the photon frequency? (b) what is the photon wavelength?

An excited nucleus emits a gamma-ray photon with energy of 2.45 MeV. (a) What is the photon frequency? (b) what is the photon wavelength?

Uranium- 238 decays to thorium- 234 with half-life 5xx10^(9) yr . The resulting nucleus is in the excited state and hence further emits gamma -rays to come to the ground state. It emits 20 gamma -rays per second. The emission rate will drop to 5 gamma -rays per second in

Uranium- 238 decays to thorium- 234 with half-life 5xx10^(9) yr . The resulting nucleus is in the excited state and hence further emits gamma -rays to come to the ground state. It emits 20 gamma -rays per second. The emission rate will drop to 5 gamma -rays per second in

A thorium nucleus is formed, when a uranium nucleus emits an alpha -particle. Atomic number of thorium is

Radioactive substances emit gamma-rays , which are :