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प्रश्न
In which of the following four diagrams is the correct path of a ray of light passing through a glass prism shown ?
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उत्तर
When a ray of light enters from air into the glass prism, it bends towards the normal and when it goes out from glass to air, it bends away from the normal. This can be observed only in figure A.
Hence, the correct option is A.
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संबंधित प्रश्न
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
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Answer the following:
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State two uses of ultraviolet radiation.
In the figure, a beam of light consisting of three colours blue, red, and yellow is incident on a prism and on a rectangular glass block respectively. Complete the diagram by drawings of the refracted and emergent rays.

The periscope is an optical device with a polished surface that reflects the light falling on it.
The angle of deviation through a prism is minimum when

- Incident rays and emergent rays are symmetric to the prism.
- The refracted ray inside the prism becomes parallel to its base.
- The angle of incidence is equal to that of the angle of emergence.
- When the angle of emergence has doubled the angle of incidence.
Choose the correct answer from the options given below:
dispersive power of crown glass? Given that µv = 1.5230, µr = 1.5145
State the colour which bends:
- The most.
- The least while passing through a glass prism.
