Assertion :The specific charge of canal rays is not constant. Reason: The mass of ion varies with speed.

Assertion is correct but Reason is wrong.

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Assertion is wrong but Reason is correct.

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Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Solution

The correct option is D Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The mass of canal rays particles depends as nature of gas.
Thus the specific charge of canal rays is not constant.
The mass of ion varies with speed.
Thus, Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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