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Question

Assertion :Cobalt60 is useful in cancer therapy. Reason: Cobalt60 is a source of γradiations capable of killing cancerous cells.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Assertion is incorrect but Reason is correct
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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Cobalt 60 is the radioactive isotope of cobalt. γradiation emitted by it is used in radiation therapy is cancer as it destroys cancerous cells.
So, assertion and reason are true and reason explains assertion.

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