Ray Optics and Optical Instruments

Related Questions

• A thin convex lens of refractive index 1.5 has a focal length of 15 cm in air. When the lens is placed in liquid of refractive index 4/3 , its focal length will be

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• If the refractive indices of a prism for red, yellow and violet colours be 1.61, 1.63 and 1.65 respectively, then the dispersive power of the prism will be

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• A rectangular tank of depth 8 meter is full of water ($\mu =4/3$), the bottom is seen at the depth

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• When light travels from one medium to the other of which the refractive index is different, then which of the following will change

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• A double convex thin lens made of glass of refractive index 1.6 has radii of curvature 15 cm each. The focal length of this lens when immersed in a liquid of refractive index 1.63 is

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