Advertisements
Advertisements
प्रश्न
What is half-life of nucleus? Give the expression.
उत्तर
The half-life T1/2 is defined as the time required for the number of atoms initially present to reduce to one-half of the initial amount.
T1/2 = `("In" 2)/lambda = 0.6931/lambda`
APPEARS IN
संबंधित प्रश्न
Give the symbolic representation of alpha decay, beta decay and gamma emission.
What are the constituent particles of neutron and proton?
Discuss the alpha decay process with example.
Discuss the beta decay process with examples.
Discuss the gamma decay process with an example.
Discuss the properties of neutrino and its role in beta decay.
Half-lives of two radioactive elements A and B are 20 minutes and 40 minutes respectively. Initially, the samples have equal number of nuclei. Calculate the ratio of decayed numbers of A and B nuclei after 80 minutes.
If T is the half-life of radioactive material, then the fraction that would remain after a time `"T"/2` is:
Mean life (τ) of a radioactive substance is x times of its half-life (t). Here x is:
For a radioactive material, half-life is 10 minutes. If initially there are 600 number of nuclei, the time taken (in minutes) for the disintegration of 450 nuclei is:
