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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
Write true or false of the following statement.
A shadow is formed because light travels in a straight-line path.
What is a transparent medium? Give two examples.
What do we call a substance through which light passes? Give an example of such a substance.
Why do objects in a room become visible even if sunlight does not enter it?
Does the flame of a gas stove emit light?
Name a few living things which emit light.
Tick the correct answer.
Substance which don’t allow light to pass through them,
When a beam of white light passes through a prism it gets ______.
Velocity of light is greater in denser medium than in rarer medium
Light is a form of energy and it travels in a straight line.
