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Earn 100

The laws of reflection of light are valid for
(a)plane mirror only.
(b)concave mirror only.
(c)convex mirror only.
(d)all reflecting surfaces.
(e)plane mirror and concave mirror only.

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Important Questions on Wave Theory of Light
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Monochromatic light of wavelength is incident on the plane reflecting surface. After reflection, its wavelength will be

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When light enters from air to water, then its

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A monochromatic beam of light passes from a denser medium to a rarer medium. As a result of this,

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Which one of the following statements is correct?
The refractive index of a given piece of glass is

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Light of a certain wavelength has a wave number in a vacuum. Its wave number in a medium of refractive index is

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A ray of light travelling in the air has the wavelength , frequency , velocity and intensity . If this ray enters into water, then these parameters are , , and , respectively. Which relation is correct from the following?

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A ray of light is incident on a glass slab making an angle of with the surface. The angle of refraction in glass, if the refractive index of glass is , is

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Light is:
