TEST 11 (X-REFRACTION OF LIGHT AT PLANE SURFACES)
EFFORTS NEVER FAIL
NAME : *
1. A ray of light is incident on a plane surface of refractive index √3 at certain angle. It is found that the reflected and refracted rays are perpendicular to each other. Then theangle of incidence is? *
1 point
2.Which of the following absolute refractive index values is not possible? *
1 point
3.Twinkling of stars is due to? *
1 point
4.Which one of the following characteristics of light is not altered by refraction? *
1 point
5.The relation between refractive index and optical density is *
1 point
6.When a pencil kept in a glass tumbler filled with water seen from the side of the glass it seems to bend. Due to *
1 point
7.The refractive index of Kerosene is *
1 point
8.The refractive index of Crown glass is *
1 point
9.The refractive index of air is *
1 point
10.The refractive index of Diamond is *
1 point
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