MODERN PUBLICATION-REFRACTION OF LIGHT-EXERCISE
- At what distance should be placed from a convex lens of focal length 1...
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- A lens placed at a distance of 20 cm from an object produces a virtual...
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- The image obtained with a convex lens is erect and its lenth is four t...
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- An object is placed at a distance of 1.5 m from a screen and a convex...
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- Two lenses of powers +4 D and -14 D form a combination.If a 2 cm size ...
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- An iluminated object and a screen are placed 90 cm apart.Determine the...
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- A convex lens is used to obtain a magnified image of an object on a sc...
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- The image obtained iwth a convex lewns is ereect and its length is fou...
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- A lens of focal length 12 cm forms an upright image three times the si...
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- A lens of focal length 12 cm produces a virtual image,whose linear dim...
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- A lens has a power of +5 D in air.If completely immersed in water,what...
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- Find the ratio of the powers of a glass lens in water and in air .Give...
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- A glass convex lens has a power of +10 D.When ths lens is totally imme...
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- What is the focal length of a convex lens of focal length 30cm in cont...
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- A concave lens is placed in contact with a convvex lens of focal lengh...
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- Two thin lenses of focal lenths + 10 cm and - 5 cm are kept in contact...
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- Two thin lenses of focal lenths + 10 cm and - 5 cm are kept in contact...
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- Two lenses of focal length 10 cm and -20 cm are placed in contact .Wha...
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- A convex lens of focal lenth 30 cm and a concave lens of focal length ...
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- Two lenses of power 15.5 D and -5.5 D are placed in contact.What is te...
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