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  4. A ray R1 is incident on the plane surface of the glass slab (kept in air) of refractive index √2 at an angle of incidence equal to the critical angle for this air glass system. The refracted ray R2 undergoes partial reflection and refraction at the other surface. The angle (in degree) between reflected ray R3 and the refracted ray R4 at that surface is ?

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Q. A ray $R_{1}$ is incident on the plane surface of the glass slab (kept in air) of refractive index $\sqrt{2}$ at an angle of incidence equal to the critical angle for this air glass system. The refracted ray $R_{2}$ undergoes partial reflection and refraction at the other surface. The angle (in degree) between reflected ray $R_{3}$ and the refracted ray $R_{4}$ at that surface is ?Physics Question Image

Ray Optics and Optical Instruments

Solution:

Correct answer is '105.00'