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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
Write true or false of the following statement.
We can see an object through an opaque medium.
Fill in the blank.
A medium which allows light to pass through it easily is called the ...................
What do we call a substance through which we cannot see light? Give an example of such a substance.
Name a few living things which emit light.
Tick the correct answer.
A tube light is a
Fill in the blank
The brightness of light is measured in ...................
Write true or false
The earth has its own light.
Choose the translucent substance from the following
Why are traffic signals red in colour?
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.
