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प्रश्न
A ray of light strikes the surface of a rectangular glass block such that the angle of incidence in
air is 0°.
In each case, draw diagram to show the path taken by the ray as it passes through the glass block and emerges from it.
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उत्तर
When angle of incidence is 0o.
संबंधित प्रश्न
Explain how spectrum is formed.
How is the angle of emergence related to the angle of incidence when prism is in the position of minimum deviation? Illustrate your answer with help of a labelled diagram using an equilateral prism?
Fig 4.31 below shows a light ray of single colour incident normally on two prisms A and B. In each case draw the path of the ray of light as it enters and emerges out of the prism. Mark the angle wherever necessary.
-
- the angle of refraction and
- the angle of deviation for the ray?
Which colour of light travels fastest in any medium except air?
State the factors on which the angle of deviation depends.
Draw ray of light bending towards the normal while passing from glass to water. Label your diagrams.
The diagram shows the path of a ray of light through a rectangular glass block placed in a liquid of uniform density.
(a) Does the light speed up or slow down in the glass,
(b) Give the reason for your answer.
Explain with the help of a diagram of how fish is able to see the objects above it.
