If the speed of light in carbon disulfide and vacuum is X and Y respectively, then
X < Y
Correct Answer: (b) X > Y
Explanation: The speed of light in a medium is less than in vacuum due to the refractive index of the medium, so X > Y (for vacuum).
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Which among the following is used as a reflector in search lights?
The incident ray, the ray perpendicular to the point of incidence, and the reflected ray all lie________.
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A. Scattering of light
B. Interference
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In which a convex mirror is used?
A. Rear View mirrors in vehicles
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Which mirror is preferred as a rear-view (wing) mirror in vehicles because of its wider field of view?
