Spontaneous and continuous disintegrationof a nucleus of aheavy element with the emission of certain types of radiation is known as radioactivity:-Write the relation connecting half-life and mean life of radioactive element.

Spontaneous and continuous disintegrationof a nucleus of aheavy element with the emission of certain types of radiation is known as radioactivity:-State radioactive decay law.

Spontaneous and continuous disintegration of a nucleus of a heavy element with the emissio of cer tain type os radiation is known as radioactivity. State radioactive decay law.

Spontaneous and continuous disintegrationof a nucleus of aheavy element with the emission of certain types of radiation is known as radioactivity:-The radioactive isotope 'D’ decays according to the sequence Doverset(beta^-)(rarr)D_1overset(alpha)(rarr)D_2 If the mass number and atomic number of D_2 are 172 and 71 respectively, what are the (i) Mass number, (ii) atomic number of D

Spontaneous and continuous disintegration of a nucleus of a heavy element with the emissio of cer tain type os radiation is known as radioactivity. Tritium has a half-life of 12.5 years. What frac tion of a sample of pure tritium will remain undecayed after 50 years?

What is meant by half life of a radioactive substance Write its relation with decay constant.

n alpha -particles per second are being emitted by N atoms of a radioactive element. The half-life of element will be :