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प्रश्न
Draw ray of light bending towards the normal while passing from glass to water. Label your diagrams.
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उत्तर
The ray of light bends away from the normal while passing from glass to water.
संबंधित प्रश्न
When rays of light are incident on a glass slab then the incident ray and emergent ray are _________ each other.
- perpendicular
- parallel
- opposite
- concurrent
How must light travel out of a substance if it is not going to be refracted?
In fig 4.18, name the ray which represents the correct path of light while emerging out through a glass block.
Define the term refractive index of a medium. What do you understand by the statement 'the refractive index of glass is 1.5 for white light'?
Fig shows a lens as a combination of a glass block and two prisms.
(i) Name the lens formed by the combination.
(ii) What is the line XX' called?
(iii) Complete the path of the incident ray PQ after passing through the lens.
(iv) The final emergent ray either meets XX' at a point or appears to come from a point on XX'. Label it as F, What is this point called?
A total reflecting equilateral prism can be used to deviate a ray of light through:
Name the material for which the refractive index is found to be maximum.
How does the angle of deviation produced by a prism depend on the angle of incidence of light at the prism surface? Draw a graph to illustrate your answer.
The speed of light in air is 3 × 108 ms-1. Calculate the speed of light in water. The refractive index of water is 4/3.
