`7/8th` of the active nuclei present in a radioactive sample has decayed in 8 s. The half-life of the sample is

Three fourths of the active nuclei present in a radioactive sample decay in 3//4s . The half life of the sample is

Three fourthers of the active nuclei present in a redioactive sample decay in 3/4s. The half life of the sample is

For a radioactive sample, 15/16 th part decays in 20 minutes. The half-life of the sample is

Three fourth of the active decays in a radioactive sample in 3//4 sec . The half-life of the sample is

State the law of radioactive decay. 3/4th of a radioactive sample decays in 3/4 s. What is the half-life of the sample?

STATEMENT-1: The activity of a radioactive sample decreases linearly with time. STATEMENT-2: The number of active nuclei present in a radioactive sample decreases exponentialy with time.

(7)/(8)th of nuclei have been disintegrated in 2 minutes after fresh sample was prepared. The half life of the sample is