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प्रश्न
What is the cause of refraction of light when it passes from one medium to another?
उत्तर
The refraction of light (or change in the direction of path of light in other medium) occurs because light travels with different speeds in different media. When a ray of light passes from one medium to another, its direction (except for ∠i = 0°) changes because of change in its speed.
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संबंधित प्रश्न
If an object is placed at a distance of 10 cm in from of a plane mirror, how far would it be from its image?
What type of reflection of light takes place from a cinema screen?
State whether the following statement is true or false:
Refraction occurs because light slows down in denser materials.
A vertical ray of light strikes the horizontal surface of some water:
What is the angle of incidence?
Light travels at a lower speed in water than in air.
Match the Following
| Column A | Column B |
| (a) white Light | (1) Convex mirror |
| (b) Refraction | (2) Concave mirror |
| (c) Virtual images | (3) refraction |
| (d) Real images | (4) spectrum |
| (e) Prism | (5) ray of light from glass to air |
Identify the wrong figure from the following.
Which surface will not reflect most of the light falling on them?
A star appears twinkling into the sky because of the reflection of light by the atmosphere.
How do twinkling stars occur? (or) what is the cause of the twinkling of stars?
