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Plane sound waves of wavelength 0.12 m a...

Plane sound waves of wavelength 0.12 m are incident on two narrow slits in a box nonreflecting walls, as shown. At a distance of 5.0 m from the center of the slits, a first-order maximum occurs at point P, which is 3.0 m from the central maximum. The distance between the slits is most nearly.
.

A

0.07 m

B

0.09 m

C

0.16 m

D

0.20 m

Text Solution

Verified by Experts

The correct Answer is:
D
`d sin theta =n lamda`
`n=1`
`d sin 37^(@)=lamda`
`d=0.2`
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