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प्रश्न
Fill in the blank
Speed of light in vacuum is .................
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उत्तर
Speed of light in vacuum is 300000 km/sec
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संबंधित प्रश्न
Write true or false of the following statement.
We can see an object through an opaque medium.
Fill in the blank.
The sun is a ............... source of light.
How does light make an object visible?
What do we call a substance through which light passes? Give an example of such a substance.
Tick the correct answer.
Substance which don’t allow light to pass through them,
The sun and ______ are the natural sources of light.
Write true or false
The earth has its own light.
A ray of light passes from one medium to another medium. Refraction takes place when angle of incidence is ______.
The angle of deviation of light ray in a prism depends on the angle of ______.
Velocity of light is greater in denser medium than in rarer medium
