Assertion :- The effective mass of \( \beta \)-particles when they are emitted is higher than th...

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Assertion :- The effective mass of \( \beta \)-particles when they are emitted is higher than the mass of
\( P \) electrons obtained by milikan oil-drop

W. experiment.
Reason :- \( \beta \)-particle and electron, both are similar particles.
(1) A
(2) B
(3) \( \mathrm{C} \)
(4) D
- (A) Both assertion and reason are correct statements, and reason is the correct explanation of the assertion.
- (B) Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion.
- (C) Assertion is correct, but reason is wrong statement.
- (D) Assertion is wrong, but reason is correct statement.
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