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1. A light ray incident on a block of glass makes an incident angle of 50.0° with the normal to the surface. The refracted ray in the block makes an 36.1° with the normal. What is the index of refraction of the glass?

2. A light ray traveling from a higher index-of-refraction medium to the lower (for example, from water into air) would bend away from the normal. When the refracted ray is parallel to the boundary of the medium, θ₂ = 90°. What is called the incident angle, θ₁ that becomes θ_c.

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Category:- Physics
Reference No.:- M91709397

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