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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
How do we see objects around us ?
How does light make an object visible?
What do we call a body that shines on its own?
Write true or false
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Speed of light in air is 3 × 108 m s–1 and the refractive index of a medium is 1.5. Find the speed of light in the medium.
Describe the pictures.
In going from a rarer to denser medium, the ray of light bends ______.
State Rayleigh’s law of scattering.
List any five properties of light.
