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प्रश्न
Answer the following.
List four natural sources of light.
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उत्तर
Sun, stars, jugnu, firefly.
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संबंधित प्रश्न
Fill in the blank.
A medium which allows light to pass through it easily is called the ...................
Select the correct alternative.
The luminous body is
How does light make an object visible?
What do we call an electric bulb producing light?
What do we call a substance through which light passes? Give an example of such a substance.
Name any four man made sources of light.
Tick the correct answer.
Substance which don’t allow light to pass through them,
State Rayleigh’s law of scattering.
Observe the picture given in the following figure carefully.
A patch of light is obtained at B, when the torch is lighted as shown. Which of the following is kept at position A to get this patch of light?
Look at the figure given in the following figure.
Will there be any difference in the shadow formed on the screen in A and B.
