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A diffraction is obtained by using a bea...

A diffraction is obtained by using a beam of red light. What will happen if the red light is replaced by the blue light?

A

(a) Bands will narrower and crowd full together

B

(b) Bands become broader and further apart

C

(c) No change will take place

D

(d) Bands disappear

Text Solution

Verified by Experts

The correct Answer is:
A
Band width `proplambda`,
`:' lambda_(blue)ltlambda_(red)`, hence for blue light the diffraction bands becomes narrower and crowded together.
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