Home
Class 12
PHYSICS
The count rate of a radioactive sample f...

The count rate of a radioactive sample falls from `4.0xx10^6 s^(-1)` to `1.0xx10^6 s^(-1)` in 20 hours. What will be the count rate after 100 hours from beginning ?

Text Solution

Verified by Experts

The correct Answer is:
`3.9 xx10^(3)` per second
Promotional Banner

Similar Questions

Explore conceptually related problems

The count rate of a radioactive sample was 1600 count/s at t=0 and 100 count/s at t=8s.Select the correct option.

The initial count rate for a radioactive source was found to be 1600 count/sec.and t = 8 sec this rate was 100 count/sec. What was the count rate at t = 6 [in counts/sec]-

Decay of a radioactive sample is 4.9xx10^(-18)s^(-1) . Choose the correct statements regarding this sample.

The rate of disintegration of a radioactive substance falls from (40)/(3) dps to (5)/(3) dps in 6 hours. The half - life of the radioactive substance is

The rate constant of a reaction is 1.5xx10^(-4)s^(-1)" at "27^(@)C and 3xx10^(-4)s^(-1)" at "127^(@)C . The Ea is

The velocity of an object increases at a constant rate from 20 m s^(-1) to 50 m s^(-1) in 10 s. Find the acceleration.

A certain freezing process requires that room temperature be lowered from 40^@ C at the rate of 5^@C every hour. What will be the room temprature 10 hours after the process begins ?

The rate constant of a reaction is 1.2 xx10^(-3) s^(-1) at 30^@C and 2.1xx10^(-3)s^(-1) at 40^@C . Calculate the energy of activation of the reaction.

The rate constant of a reaction is 1.5 xx 10^(7)s^(-1) at 50^(@)C and 4.5 xx 10^(7) s^(-1) at 100^(@)C . Evaluate the Arrhenius parameters A and E_(a) .

The rate constant of a reaction is 1.5 xx 10^(7)s^(-1) at 50^(@)C and 4.5 xx 10^(7) s^(-1) at 100^(@)C . Evaluate the Arrhenius parameters A and E_(a) .