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प्रश्न
Differentiate between the luminous and non-luminous bodies. Give two examples of each.
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उत्तर
Luminous
The bodies which have the light of their own e.g. sun stars, bulb, candle, oil lamp, torch, a lantern.
Non-Luminous
The bodies-which do not have their own Light. e.g. moon, chair, table. When light falls on them, they become visible.
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संबंधित प्रश्न
Write true or false of the following statement.
A shadow is formed because light travels in a straight-line path.
Why do objects in a room become visible even if sunlight does not enter it?
What do you understand by candle power?
Fill in the blank
Light consists of .............. colours.
When light passes through a prism, it gets separated into ______ colours.
Match the following.
| Group A | Group B |
| (a) Mirror | (1) Non-luminous |
| (b) Firefly | (2) Inverted image |
| (c) Pinhole camera | (3) Reflection |
| (d) Moon | (4) Luminous |
________ objects allow all the light to pass through them.
If the energy of incident beam and the scattered beam is the same, then the scattering of light is called as ______ scattering.
Amount of light entering into the eye is controlled by ______.
A ray of the light incident along normal to the mirror ______ its path.
