The disintegration rate of a certain radioactive sample at any instant is 4750 disintegrations per minute. Five minutes later the rate becomes 2700 per minute. Calculate
(a) decay constant and (b) half-life of the sample

The disntergration rate of a certain radioactive sample at any instant is 4750 dp m . Five minute later, the rate becomes 2700 dp m Calculate half-line of sample.

The disintegration rate of a certain in radioactive sample at an instant is 4750 dpm. 10 minutes later the rate becomes 2760 dpm. What is the half-life of sample.

The disintegrationn rate of a certain radioactive sample at any instant is 4750 dpm which becomes 2700 dpm 5 min later. Calculate the half life to sample?

A counter rate meter is used ot measure the activity of radioactive sample. At a certain instant the count rate was recorded as 475 counters per minute. Five minutes later, the count rate recorded was 270 counts per minute. Calculate the decay constant and half life period of the sample.

The activity of a radioactive substance is 4700 per minute. Five minute later the activity is 2700 per minute. Find (a) decay constant and (b) half-life of the radioactive substance.

The rate of disintegration of a radioactive sample can be increased by :-

A radioactive sample at any instant has its disintegration rate 5000 disintegrations per minute. After 5 minutes, the rate becomes 1250 disintegration per minute. Then its decay constant (per minute) is