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प्रश्न
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उत्तर
Three characteristics of light are:-
(a). Light waves can travel through a vacuum.
(b). Light waves are transverse waves.
(c). The velocity of light in a vacuum is 3 x 108 m/s.
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संबंधित प्रश्न
State two uses of a plane mirror.
What do you mean by reflection of light?
A boy is standing in front of a plane mirror at a distance of 3 m from it.
(i) What is the distance between the boy and his image?
(ii) If the boy moves 1 m backward, find the distance between the image and the boy.
Dull materials reflect light.
What is reflection of light?
State the direction of incident ray which after reflection from a spherical mirror retraces its path. Give reason for your answer.
A ray of light is travelling in a direction perpendicular to the boundary of a parallel glass slab. The ray of light ______.
Why does a light ray incident on a rectangular glass slab immersed in any medium emerges parallel to itself? Explain using a diagram.
