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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.
संबंधित प्रश्न
What do you mean by the term reflection of light ?
If the angle between the plane mirror and the incident ray is 40∘, what are the angles of incidence and reflection?
What type of mirror is used to obtain a real image-of an object?
An object is placed in front of a convex mirror of focal length 25 cm. By scale, a drawing shows the formation of image and states the nature of image.
Given that v = 10 cm.
A ray of light is travelling in a direction perpendicular to the boundary of a parallel glass slab. The ray of light ______.
A point source of light S is placed in front of two large mirrors as shown. Which of the following observers will see only one image of S?
