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प्रश्न
Answer the following.
List four natural sources of light.
उत्तर
Sun, stars, jugnu, firefly.
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संबंधित प्रश्न
Name two natural sources of light.
What do we call a substance through which we cannot see light? Give an example of such a substance.
Write the names of some transparent objects.
What do you understand by candle power?
A ______ is an artificial source of light.
Light is a form of ______.
A ray of light passes from one medium to another medium. Refraction takes place when angle of incidence is ______.
In going from a rarer to denser medium, the ray of light bends ______.
a) Draw ray diagrams to show how the image is formed using a concave mirror, when the position of object is:
- at C
- between C and F
- between F and P of the mirror.
b) Mention the position and nature of image in each case.
A ray of the light incident along normal to the mirror ______ its path.
