Solve

Guides

0

You visited us 0 times! Enjoying our articles? Unlock Full Access!

Question

The half-life period of a radioactive element $X$ is same as the mean lifetime of another radioactive element $Y$ . Initially, both of them have the same number of atoms. Then
X and Y have the same decay rate initially
X and Y decay at the same rate always
Y will decay at a faster rate than X
X will decay at a faster rate than Y

A

X and Y have the same decay rate initially

B

X and Y decay at the same rate always

C

Y will decay at a faster rate than X

D

X will decay at a faster rate than Y

Open in App

Solution

Verified by Toppr

$t_{1 / 2}^{X} = t^{Y}$

Was this answer helpful?

4

Similar Questions

Q1

The half life period of a radioactive element A is the same as the mean life of another radioactive element B. Initially both of them have the same number of atoms. The radioactive element B decays faster than A. Explain why.

View Solution

Q2

The half-life period of a radioactive element

X

is same as the mean lifetime of another radioactive element

Y

. Initially, both of them have the same number of atoms. Then

View Solution

Q3

Read the following :
(i) The half-life period of a radioactive element X is same as the mean-life time of another radioactive element Y. Initially, both of them have the same number of atoms. Then Y will decay at a faster rate than X.
(ii) The electron emitted in beta radiation originated from the decay of a neutron in a nucleus.
(iii) The half-life of

^{215}

A is 100 ms. The time taken for the radioactivity of a sample of

^{215}

At to decay to

1 / 16^{t h}

of its initial value is 400 ms.
(iv) The volume (V) and mass (m) of a nucleus are related us

V \propto

m.
(v) Given a sample of Radium - 226 has a half-life of 4 days. Then nucleus disintegrates 3/4 within 2 half-lives.
Select the correct code for above:

View Solution

Q4

The half life period of a radioactive element

X

is same as the mean life time of another radioactive element

Y

. Initially they have the same number of atoms. Then

View Solution

Q5

Two radioactive elements X and Y have decay constants $λ$ and $10 λ$ respectively. If decay begins with the same number of atoms of them, the ratio of atoms of X to those of Y after time $\frac{1}{9 λ}$ will be

View Solution