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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > P is small angled prism of angle 3 made of a material of refractive index 1.5. A ray of light is incident normally to the mirror as shown in figure. M is a plane mirror. The angle of deviation for the ray reflected from the mirror M with respect to the incident ray is :

P is small angled prism of angle 3 made of a material of refractive index 1.5. A ray of light is incident normally to the mirror as shown in figure. M is a plane mirror. The angle of deviation for the ray reflected from the mirror M with respect to the incident ray is :

A is ahead of B in phase by 66^@. If the observation be taken from point P Among the two interfering monochromatic sources A and B such that PB-PA=lambda//4. Then the phase difference between the waves from A and B reaching P is