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प्रश्न
A total reflecting equilateral prism can be used to deviate a ray of light through:
विकल्प
30°
60°
75°
90°
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उत्तर
60°
Hint:
संबंधित प्रश्न
If the speed of light in vacuum is 3 × 108 ms−1, find the speed of light in a medium of absolute refractive index 1.5.
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- Write down a similar expression for aμg in terms of the angles i and r.
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- What is the physical significance of the angle i in part (b)?
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- In the diagram show the approximate direction of these rays as they emerge out of the block.
- What is the angle of refraction for the ray PB?
`("Take" sin 42° =2/3)`
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Does the depth of a tank of water appear to change or remain the same when viewed normally from above?
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A ray of light moves from a rare medium to a dense medium as shown in the diagram below. Write down the number of the ray which represents the partially reflected ray.
