Ray Optics and Optical Instruments

Related Questions

• A ray of light is incidenting normally on a plane mirror. The angle of reflection will be

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• An object placed $10 cm$ in front of a lens has an image $20 cm$ behind the lens. What is the power of the lens (in dioptres)

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• A concave lens of glass, refractive index $1.5$, has both surfaces of same radius of curvature R. On immersion in a medium of refractive index $1.75$, it will behave as a

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• A ray of light is incident at an angle of 60° on one face of a prism of angle 30°. The ray emerging out of the prism makes an angle of 30° with the incident ray. The emergent ray is

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• The magnifying power of an astronomical telescope is 8 and the distance between the two lenses is 54 cm. The focal length of eye lens and objective lens will be respectively

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