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प्रश्न
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उत्तर
Three distinctions between light and sound waves are
(a). Light waves can travel through a vacuum while sound waves cannot.
(b). Light waves are transverse waves while sound waves are longitudinal waves.
(c). The velocity of light in air is 3 x 108 m/s while the speed of light in air is just about 330 m/s.
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संबंधित प्रश्न
Write true or false of the following statement.
The image formed by a plane mirror is real
A light ray is incident normally on a plane mirror. What is the direction of reflected ray? Show it on a diagram.
A ray is incident on a plane mirror . Its reflected ray is perpandicular to the incident ray . Find the angle of incidence .
State three ways in which the image formed in a plane mirror differs from the image formed in a pin hole camera.
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Part of the eye which controls the light entering is called
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A burning candle in water
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