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Assertion: If white light is used in pla...

Assertion: If white light is used in place of monochromatic light in YDSE, then central point is white, although at other places coloured fringes will be obtained.
Reason: At centre, path difference is zero for all wavelengths. Hence, all wavelengths will interfere constructively.

A

(a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

(b)If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.

C

(c) If Assertion is true, but the Reason is false.

D

(d) If Assertion is false, but the Reason is true.

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Assertion : When a thin transparent sheet is placed in front of both the slits of Young's experiment, the fringe width will remains same. Reason : In Young's experiment, the fringe width is directly proportional to wavelength of the source used.

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    B
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    D
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