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- A student's near point is 0.5 m and far point is 3m . What are the po...
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- The least distance of distinct vision of a person is 75 cm. The focal ...
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- The image formed by an objective of a compound microscope is
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- The magnifying power of a telescope can be increased
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- The objective of a compound microscope is essentially
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- The length of a telescope is 36 cm . The focal lengths of its lenses c...
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- The magnifying power of an astronomical telescope is 8 and the distanc...
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- In a laboratory four convex lenses L(1), L(2), L(3) and L(4) of focal ...
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- A telescope has an objective lens of focal length 200cm and an eye pie...
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- Least distance of distinct vision is 25 cm . Magnifying power of simpl...
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- Focal length of objective and eye piece of telescope are 200 cm and 4 ...
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- A compound microscope has an eye piece of focal length 10 cm and an ob...
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- The focal lengths of the objective and of the eye-piece of a compound ...
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- A square card of side length 1 mm is being seen through a magnifying l...
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- When a telescope is in normal adjusment, the distance of the objective...
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- Spherical wavefronts, emanating from a point source, strike a plane re...
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- A point source that emits wave uniformly in all directions, produces w...
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- The refractive index of glass is 1.9. If light travels through a glass...
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- Light propagates 2 cm distance in glass of refractive index 1.5 in tim...
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