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The counting rate observed from a radioactive source at t=0 second was 1600 counts per second and at t=8 seconds it was 100 counts per second. The counting rate observed, as counts per second at t=6 seconds, willbe

1.From a basket of mangoes when counted in twos there was one extra,counted in threes there were two extra,counted in fours there were three extra,counted in fives there were four extra,counted in sixes there were five extra.But counted in sixes there were no extra.Atleast how many mangoes were there in the basket?

Using a nuclear counter the count rate of emitted particles from a radioactive source is measured. At t = 0 seconds it was 25600 counts per second and t = 8 seconds it was 100 counts per second. The count rate observed, as counts per second, at t = 6 seconds is close to:

Using a nuclear counter the count rate of emitted particles from a radioactive source is measured. At t=0 it was 1600 counts per second and t = 8 seconds it was 100 counts per second. The count rate observed, as counts per seconds, at t=6, seconds is close to :

For measuring the activity of a radioactive sample, a count rate meter is used. At certain observation , count rate meter 5050 counts per minute but after 10 minute later , the count rate showed 2300 counts per minute . Calculate the disintegration constant ( lambda )

Counting Of Triangles

A counter gives a count of 320 counts/minute for a radioactive source . After 75 minutes, the counter shows a count rate of 40 counts/minute . What is the half life period of the source ?

Half-life of radioactive sample, when activity of material initially was 8 counts and after 3 hours it becomes 1 count is

The official counting of population is known as :