Home
Class 12
PHYSICS
The following table shows some measureme...

The following table shows some measurements of the decay rate of a radionuclide sample. Find the disintegration constant.

Text Solution

Verified by Experts

`R-RO E^(-lambdat)`
In R `=ln Ro-lambdat`
ln `R=-lambdat+ln Ro`
slope of ln R v/s. t is `-lambda`
`-lambda=(0-1.52)/(210-254)`
`-lambda =0.038"min ute"^(-1)`
Promotional Banner

Topper's Solved these Questions

  • SAMPLE QUESTION PAPER 2019

    CBSE COMPLEMENTARY MATERIAL|Exercise Section C|19 Videos
  • SAMPLE QUESTION PAPER 2019

    CBSE COMPLEMENTARY MATERIAL|Exercise Section C|19 Videos
  • ELECTROSTATICS AND CURRENT ELECTRICITY

    CBSE COMPLEMENTARY MATERIAL|Exercise NUMERICALS|49 Videos
  • UNIT–III & UNIT–IV MAGNETIC EFFECTS OF CURRENT AND MAGNETISM & E.M.I. AND ALTERNATING CURRENT

    CBSE COMPLEMENTARY MATERIAL|Exercise (NUMERICALS)|57 Videos

Similar Questions

Explore conceptually related problems

The decay constant of a radioactive sample

The decay constant lambda of a radioactive sample:

At t= 0 ,a sample of radionuclide A has the same decay rate as a sample of radionuclide B has at t = 60 min. The disintegration constants of A and B are lambda_(A) and lambda_(B) respectively, with lambda_(A) lt lambda_(B) .

At t=0, a sample of radionuclide A has the same decay rate as a sample of radionuclide B has at t=30min. The disintegration constants are lambda_(A) and lambda_(B) , with lambda_(A)ltlambda_(B) . Will the two samples ever have (simultaneously) the same decay rate?

The table that follows shows some measurementf of the decay rate of a sample of .^(128)I , a radio nuclide often used medically as a tracer to measure the rate at which iodine is absorbed by the thyroid gland. |{:("Time(min)",A (counts//s),"Time(min)",A(counts)//s,),(4,392.2,132,10.9,),(36,161.4,164,4.56,),(68,65.5,196,1.86,),(10,26.8,218,1.00,):}| The half life t_(1//2) for this radio nuclide.

Unit of decay constant of radiocative disintegration is

The rate of disintegration of a radioactive sample can be increased by :-

The following table shows the daily supply of electricity to differenet places in a town. To show the information by a pie diagram, measures of central angles of sectors are to be decided. Complete the following activity to find the measures.