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What Is Radioactivity?

Assertion: Ra...

Question

Assertion: Radioactive decay has a characteristic half-life.
Reason: First-order kinetics is found in radioactive decay.

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

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B

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion

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C

Assertion is true but Reason is false

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D

Assertion is false but Reason is true

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E

Both Assertion and Reason are false

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Solution

The correct option is C Both Assertion and Reason are true and Reason is the correct explanation of Assertion
Assertion: Radioactive decay has characteristic half-life. Thus, different nuclei decay with different half life periods.
Reason: First -order kinetic are found in radioactive decay. Hence, the rate of the radioactive decay is directly proportional to the initial activity.
So, Both Assertion and Reason are true and Reason is the correct explanation of Assertion

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