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Statement-1: An isolated radioactive ato...

Statement-1: An isolated radioactive atom may not decay at all whatever be its half life
Statement-2:Radioactive decay is a statistical phenomenon.

A

If both, Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

B

If both, Assertion and Reason are true but Reason is not a correct explanation of the Assertion.

C

If Assertion is true but the Reason is false.

D

If both Assertion and Reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A

Both, assertion and reason are true and the latter is a correct explanation of the former.
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Which of the following statements are true ? I. All radioactive elements decay exponentially with time II. Half-life of radioactive element is the time required for one half of the radioactive atoms to disintegrate III. Age of the earth can be determined by radioactive dating IV. Half. life time of a radioactive element is fifty percent of its average life period Sleet the correct answer using the codes given below

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Knowledge Check

  • The half-life of a radioactive decay is x times its mean life. The value of zx is

    A
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    B
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    C
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    D
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    A
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    B
    b) 7.5 min
    C
    c) 10 min
    D
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    A
    I and II
    B
    I, III and IV
    C
    I, II and III
    D
    II and III
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