A freshly prepared sample of a radioisot...

A freshly prepared sample of a radioisotope of half - life `1386 s ` has activity `10^(3) ` disintegrations per second Given that `ln 2 = 0.693` the fraction of the initial number of nuclei (expressed in nearest integer percentage ) that will decay in the first `80 s ` after preparation of the sample is

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

RADIOACTIVITY
MOTION|Exercise EXERCISE - 4 LEVEL - I|10 Videos
PERIODIC TABLE
MOTION|Exercise Exercise - 4 | Level-II|22 Videos
S-BLOCK
MOTION|Exercise EXERCISE - 3 Level - II Previous Year | JEE adv|4 Videos

Similar Questions

Explore conceptually related problems

A fresbly prepared of a radioisotope of half - life 1386 s has activety 10^(3) disentegrations per second Given that ln 2 = 0.693 the fraction of the initial number of nuclei (expressedin nearest integer percentage ) that will decay in the first 80 s after preparation of the sample is

In a sample of radioactive material , what fraction of the initial number of active nuclei will remain undisintegrated after half of the half life of the sample ?

In a sample of radioactive material, what fraction of initial number of active nuclei will remain undistintegrated after half of a half0life of the sample?

A radioactive element is disintegrating having half-life 6.93 s. The fractional change in number of nuclei of the radioactive element during 10 s is

(7)/(8)th of nuclei have been disintegrated in 2 minutes after fresh sample was prepared. The half life of the sample is

7/8th of the active nuclei present in a radioactive sample has decayed in 8 s. The half-life of the sample is

A freshly prepared sample of a certain radioactive isotope has an activity of 10mCi. Afte 4.0h its activity is 8.00 mCi. (a) Find the decay constant and half-life How many atoms of the isotope were contained in the freshly preapared sample? (c) What is the sample's activity 30.0 h after it is prepared?

If the half life of a radioactive nucleus is 3 days nearly, what fractions of the initial number of nuclei will decay on the 3rd day? (Given that sqrt(0.25)= 0.63)

A sample which has half life of 10^(33) year . If initial number of nuclei of the sample is 26 xx 10^(24) . Then find out of the number of nuclei decayed in 1 year.

MOTION-RADIOACTIVITY -EXERCISE - 4 LEVEL - II

Complete and balance the following reactions. (i) ""(92)Th^(234) rar...
Text Solution
|
Some laws/processes are given in column-I. Match these with the physic...
Text Solution
|
Half–life of a radioactive substance A is 4 days. The probability that...
Text Solution
|
Carbon 14 is used to determine the age of organic material. The proced...
Text Solution
|
Carbon 14 is used to determine the age of organic material. The procer...
Text Solution
|
Carbon 14 is used to determine the age of organic material. The proced...
Text Solution
|
A positron is emitted from .(11)Na^(23) . The ratio of the atomic mass...
Text Solution
|
A positron is emitted from .(11)Na^(23) . The ratio of the atomic mass...
Text Solution
|
A radioactive sample S1 having an activity of 5muCi has twice the numb...
Text Solution
|
The total number of alphaandbeta particles emitted in the nuclear reac...
Text Solution
|
The numberr of neutrons emitted when ""(92)""^(235)U undergoes control...
Text Solution
|
Bombardment of aluminium by alpha-"particle" leads to its artificial d...
Text Solution
|
Two radioactive nuclides A and B have half-lives 50 min and 10 min res...
Text Solution
|
Loss of beta-particles is equivalent to
Text Solution
|
Text Solution
|
A freshly prepared sample of a radioisotope of half - life 1386 s has...
Text Solution
|
Match List I of the nuclear processes with List II containing parent n...
Text Solution
|
In the nuclear transmutation : .(4)^(9) Be + X rarr (4) ^(8) Be +Y ...
Text Solution
|
A closed vessel with rigid walls contains 1 mole of .(92)^(238)U and 1...
Text Solution
|
A plot of the number of neutrons (n) against the number of protons (p...
Text Solution
|