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प्रश्न
-
- the angle of refraction and
- the angle of deviation for the ray?
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उत्तर
The ray of light which is incident normally on a plane glass slab passes undeviated. That is such a ray suffers no bending at the surface because here the angle of incidence is 0°. Thus if angle of incidence ∠i= 0°, then the angle of refraction ∠r = 0°. And the angle of deviation of the ray will also be 0°.
संबंधित प्रश्न
Select from the following the best experimental setup for tracing the path of a ray of light passing through a rectangular glass slab.
(a) P
(b) Q
(c) R
(d) S
State the dependence of angle of deviation On the refractive index of the material of the prism.
Light of a single colour is passed through a liquid having a piece of glass suspended in it. On changing the temperature of liquid, at a particular temperature the glass piece is not seen. When is the glass piece not seen?
With the help of diagram of the principal section of a prism, indicate its refracting surfaces, refracting edge and base.
In fig 4.18, name the ray which represents the correct path of light while emerging out through a glass block.
A coin is places at the bottom of a beaker containing water (refractive index = 4/3) to a depth of 12 cm. By what height the coin appears to be raised when seen from vertically above?
Observe the figure and write accurate conclusion regarding refraction of light.
Why does a fisherman aim at the tail of fish during spearfishing?
