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A: When a narrow pulse of light is sent ...

A: When a narrow pulse of light is sent through a medium, it doesn't retain its shape as it travels through the medium.
R: Since the speed of propagation in a medium depends on wavelength , different wavelength components of the pulse travel with different speeds.

A

IF both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark(2)

C

IF Assertion is true statement but Reason is false then mark(3)

D

If both Assertion and Reason are false statements, then mark (4)

Text Solution

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The correct Answer is:
A
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