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प्रश्न
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उत्तर
Four characteristics of light are:-
(a). Light waves can travel through a vacuum
(b). Light waves are transverse waves
(c). The wavelength of light waves is short so that their length is measured in cents-microns.
(d). The velocity of light in a vacuum is 3 x 108 m/s.
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संबंधित प्रश्न
State four uses of a plane mirror.
Compare the characteristics of an image formed by a convex mirror and a concave mirror, when object is beyond center of curvature, but not at infinity.
Complete the ray diagram to show the image observed by the eye after reflection in the following figure.
In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?
An object that blocks all of the light from passing through is ______.
Why does a light ray incident on a rectangular glass slab immersed in any medium emerges parallel to itself? Explain using a diagram.
The angle of incidence is equal to the angle of reflection for perfect reflection.
