1.

M_(1) and M_(2) are plane mirrors and kept parallel to each other. At point O, there will be a maxima for wavelength. Light from a monochromatic source S of wavelength lambda is not reaching directly on the screen. Then, lambda is

Answer»

`(3D^(2))/(D)`
`(3d^(2))/(2D)`
`(d^(2))/(D)`
`(2d^(2))/(D)`

ANSWER :B


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