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प्रश्न
Fill in the blank
The brightness of light is measured in ...................
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उत्तर
The brightness of light is measured in candle power.
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संबंधित प्रश्न
Write true or false of the following statement.
The moon is self-luminous.
Write true or false of the following statement.
We can see an object through an opaque medium.
Fill in the blank.
Light gives us the sensation of ................
What do we call a body that shines on its own?
The sun and ______ are the natural sources of light.
Answer the following.
List four natural sources of light.
Answer the following.
List two transparent objects.
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.
In going from a rarer to denser medium, the ray of light bends ______.
What happens to light when it gets dispersed? Give an example.
