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As the angle of incidence, i increases, the intensity of

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Important Questions on Refraction of Light

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Light travels from a medium of refractive index  μ1 to another of refractive index μ2μ1>μ2. For total internal reflection of light, which is not true?
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A ray of light travelling inside a rectangular glass block of refractive index  2 is incident on the glass-air surface at an angle of incidence of  45°. The refractive index of air is one. Under these conditions, the ray
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With respect to air, a critical angle in a medium for light of red colour λ1 is θ. Other facts remaining same, the critical angle for light of yellow colour λ2 will be,
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During dispersion of white light by prism placed in air, for a particular value of angle of the prism,
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A given ray of light suffers minimum deviation in an equilateral prism P. Additional prisms Q and R of identical shape and of same material as P are now added as shown in the figure. The ray will now suffer

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A ray of light is incident on a  60° prism at the minimum deviation position. The angle of refraction at the first face (i.e., incident face) of the prism is