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Assertion: Photons can exist at rest. ...

Assertion: Photons can exist at rest.
Reason: Rest mass `m_0=msqrt(((1-v^2)/(c^2)))`
`because` v = c (speed of light) `therefore` `m_0=0`

A

Assertion is True, Reason is True,
Reason is a correct explanation for Assertion.

B

Assertion is True, Reason is True,
Reason is not a correct explanation for Assertion.

C

Assertion is True, Reason is False.

D

Assertion is False, Reason is True.

Text Solution

Verified by Experts

The correct Answer is:
D
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TARGET PUBLICATION-ELECTRONS AND PHOTONS-Evaluation Test
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