Consider the optical system shown in Fig. The point source of light S is having wavelength equal to . The light is reaching screen only after reflection. For point P to besecond maxima, the value of would be ( D d and d )

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Consider the optical system shown in Fig. The point source of light S is having wavelength equal to . The light is reaching screen only after reflection. For point P to besecond maxima, the value of would be ( D >>d and d>> )

Quantrex Academy · Accepted Answer

Correct answer: A. 12 d^ 2 D

At P , x= (8 d) 3 d D For 2 nd maxima, x=2 array l 24 d^ 2 D =2 \ = 12 d^ 2 D array

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