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प्रश्न
Answer the following.
Write down five man-made sources of light.
उत्तर
Electric bulb, torch, an oil lamp, fluorescent tube, candle.
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संबंधित प्रश्न
Fill in the blank.
Light travels in a ................. path.
Differentiate between the luminous and non-luminous bodies. Give two examples of each.
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.
Name some sources of light that are not hot.
When a ______ object comes in the way of light, light passes ______ it.
State whether true or false. If false, correct the statement.
If a ray of light passes obliquely from one medium to another, it does not suffer any deviation.
If the energy of incident beam and the scattered beam is the same, then the scattering of light is called as ______ scattering.
Why are traffic signals red in colour?
List any five properties of light.
