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प्रश्न
Name the factors affecting the critical angle for the pair of media.
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उत्तर
Factors affecting the critical angle:
(i) Angle of incidence.
(ii) Refractive index of the medium.
संबंधित प्रश्न
Angle of deviation is the angle which the ______ ray makes with the direction of ______ray.
Write the necessary conditions for the phenomenon of total internal reflection to
occur ?
If a light ray does not undergo, refraction at the boundary between two media, the angle of incidence is:
In the following figure, show two rays A and B travelling from water to air. If the critical angle for water- air surface is 48°, complete the ray diagram showing the refracted rays for each. State conditions when the ray will suffer total internal reflection.
How does a ray of light bend when it travels from when it is normal to the interface of the two media.
What is meant by the term ‘critical angle’?
Choose the correct option.
Angles of deviation for extreme colours are given for different prisms. Select the one having maximum dispersive power of its material.
What are the examples of total internal reflection in nature?
A rectangular block of glass ABCD has a refractive index 1.6. A pin is placed midway on the face AB (Figure). When observed from the face AD, the pin shall ______.
- appear to be near A.
- appear to be near D.
- appear to be at the centre of AD.
- not be seen at all.
The angle made by incident ray of light with normal of the reflecting surface is called ______.
