Ray Optics and Optical Instruments

Related Questions

• Two points separated by a distance of 0.1 mm can just be resolved in a microscope when a light of wavelength 6000 Å is used. If the light of wavelength 4800Å is used this limit of resolution becomes

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• A biconvex lens with equal radii curvature has refractive index 1.6 and focal length 10 cm. Its radius of curvature will be

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• The focal length of the objective lens of a compound microscope is

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• When a plane mirror is placed horizontally on a level ground at a distance of $60$ m from the foot of a tower, the top of the tower and its image in the mirror subtend an angle of $90^\circ $ at the eye. The height of the tower will be

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• Our eye is most sensitive for which of the following wavelength

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