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*(2), , *(3), , (4), , 6), , (6), , (7), , (8), , (9), , (10), , If the refractive index of glass with respect to air, , is . then the refractive index of air with respect, to glass ‘, , 1 1 2, @>z 3 Oz @sZ, We can see the sun even when it is little below the, horizon because of - —, (a) Reflection of light (b) Refraction of light, (c) Dispersion of light (d) Absorption of light, When light ray passes from air to glass slab then, it, , (a) bends towards normal (b) bends away, , (c) does not bend (d) turn back, When light passes through glass slab, the incident, ray and emergent ray are - 6, , (a) intersecting (b) parallel, , (c) makinganangle §(d) touching, , When light ray travels from denser medium to, rarer, then it . =, , (a) bends towards normal, , (b) bends away from normal, , (c) goes undeviated, , (d) deviates randomly, , The velocity of light in air is m/s., , (a) 3x10" (b) 3x 10°, , (c) 1.5 10° (d) 0.3 x 10°, , Rakesh performs the experiments on tracing the, , path of a ray of light passing through a rectangular, glass slab for different angles of incidence. He, observes that in all cases, , (a) 2i>Zrbut Zi= Ze (b) Zi< Zrbut Zi= Ze, (c) A>Zebut 4=Zr (d) Zi< Zebut Zi= Zr, , When a ray of light travels from air to glass and, strikes the surface of separation at 90°, then it, , (a) bends towards the normal, , (b) bends away from the normal, , (c) passes without bending, , (d) reflects to air, , A ray of light incident from a denser medium, passes through a rarer medium in a straight line., What should be angle of incidence ?, , (a) 0° (b) 30° (c) 60° (d) 120°