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When a Radioactive substance is kept in ...

When a Radioactive substance is kept in a vessel, थे atmosphere around it is rich with

A

He

B

Ne

C

Ar

D

Xe

Text Solution

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The correct Answer is:
A
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Half-life of a radioactive substance A is two times the half-life of another radioactive substance B. Initially the number of nuclei of A and B are N_A and N_B respectively. After three half lives of A number of nuclei of both are equal. Find the ratio N_(A)//N_(B)

Knowledge Check

  • When a radioactive substance is kept in a vessel, the atmosphere around it is rich with

    A
    He
    B
    Ne
    C
    Ar
    D
    Xe

  • A radioactive substance (parent ) decays to its daughter element the age of radioactive substance (t) is related to the daughter (d) parent (p) ratio by the equation :

    A
    `t = (1)/(lambda) "ln" (1 + (p)/(d))`
    B
    `t = (1)/(lambda) "ln" (1 + (d)/(p))`
    C
    `t = (1)/(lambda) "ln" ((d)/(p))`
    D
    `t = (1)/(lambda) "ln" ((p)/(d))`

  • Half life period of a radioactive substance is 1600 minutes . What fraction of the substance will remain after 6400 minutes :

    A
    `1//16`
    B
    `1//4`
    C
    `1//8`
    D
    `1//2`

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    The half-life of a radioactive substance is 100 years. Calculate in how many years the activity will decay to 1//10^(th) of its initial value.

    Why do curd and sour substances not be kept in copper vessels ?

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