Question

In a gamma ray emission from nucleus : 

विकल्प

•  only the number of protons change 

•  the number of protons and neutrons, both change 

•  there is no change in the number of protons and the number of neutrons 

• only the number of neutrons change 

Answer 1

there is no change in the number of protons and the number of neutrons 

ϒ - radiation are em radiation 

`therefore`  no change in the number of protons and number of neutrons.