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प्रश्न
A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incident is ______.
विकल्प
0°
45°
60°
90°
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उत्तर
A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incident is 0°.
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संबंधित प्रश्न
State the conditions required for total internal reflection of light to take place
Name two factors which affect the critical angle for a given pair of media. State how do the factors affect it.
Write the relation between the refractive index and critical angle for a given pair of optical media?
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Complete the following diagram to show the path of the ray of a single colour in the diagram as if enters in and emerges out of the prism. Mark the angles wherever necessary. (Critical angle for glass = 42°).
For the same angle of incidence, the angle of refraction in four media A, B, C and D are 25°, 30°, 35° and 40° respectively. The speed of light is least in medium ______.
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What is the phenomenon used in optical fiber? Explain.
A jar of height h is filled with a transparent liquid of refractive index µ (Figure). At the centre of the jar on the bottom surface is a dot. Find the minimum diameter of a disc, such that when placed on the top surface symmetrically about the centre, the dot is invisible.
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Name the phenomenon responsible for the formation of this image.
