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प्रश्न
List two artificial sources of light.
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उत्तर
Electric bulb, torch, an oil lamp, fluorescent tube, candle.
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संबंधित प्रश्न
What do we call a substance through which we cannot see light? Give an example of such a substance.
Tick the correct answer
Glass is
Tick the correct answer.
Substance which don’t allow light to pass through them,
The sun and ______ are the natural sources of light.
Fill in the blank
A ............. is formed when the path of light is obstructed by an ..............
Write true or false
Opaque objects do not allow light to pass through them.
Answer the following.
List four natural sources of light.
Answer the following.
Differentiate between luminous and non-Luminous objects.
Mirrors change the direction of light that fall on them.
If VB, VG, VR be the velocity of blue, green, and red light respectively in a glass prism, then which of the following statement gives the correct relation?
