Ray Optics and Optical Instruments

Related Questions

• A concave and convex lens have the same focal length of 20 cm and are put into contact to form a lens combination. The combination is used to view an object of 5 cm length kept at 20 cm from the lens combination. As compared to the object, the image will be

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• A point object O is placed in front of a glass rod having spherical end of radius of curvature 30 cm. The image would be formed at

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• An object $5cm$ tall is placed $1m$ from a concave spherical mirror which has a radius of curvature of $20cm$ The size of the image is

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• A light ray is incident by grazing one of the face of a prism and after refraction ray does not emerge out, what should be the angle of prism while critical angle is C

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• The far point of a myopia eye is at 40 cm. For removing this defect, the power of lens required will be

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