A man runs towards the plane mirror at 2 m/s. The relative speed of his image with respect to him will be
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A concave lens from the image of an object which is
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Which of the given is NOT paired correctly?
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If a diverging lens is to be used to form an image which is one fourth of the size of the object where must the object be placed?
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Which of the given can produce a virtual image larger in size than the object ?
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Refractive index
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When light enters from a rarer medium to a denser medium
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A hunter wants to shoot a fish whose image can be seen through clear water. It is to be aimed
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A diverging lens will produce
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On heating a liquid the refractive index generally
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A lens has a power of +0.5D. It is:
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Light waves spreading from two sources produce interference only if they are
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