Ray Optics and Optical Instruments

Related Questions

• An object of size $7.5cm$ is placed in front of a convex mirror of radius of curvature $25cm$ at a distance of $40cm.$The size of the image should be

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• The critical angle of a medium with respect to air is ${{45}^{o}}$. The refractive index of medium is

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• The refractive index of a piece of transparent quartz is the greatest for

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• In an astronomical telescope, the focal length of the objective lens is 100 cm and of eye-piece is 2 cm. The magnifying power of the telescope for the normal eye is

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• When light rays are incident on a prism at an angle of 45°, the minimum deviation is obtained. If refractive index of the material of prism is $\sqrt{2}$, then the angle of prism will be

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