Ray Optics and Optical Instruments

Related Questions

• The focal lengths of the objective and eye lenses of a telescope are respectively 200 cm and 5 cm. The maximum magnifying power of the telescope will be

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• The refractive index of water is $1.33$. The direction in which a man under water should look to see the setting sun is

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• Which one of the following statements is correct

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• A ray of light travelling inside a rectangular glass block of refractive index $\sqrt{2}$ is incident on the glass–air surface at an angle of incidence of 45°. The refractive index of air is 1. Under these conditions the ray

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• A ray is incident at an angle of incidence $i$ on one surface of a prism of small angle $A$ and emerges normally from the opposite surface. If the refractive index of the material of the prism is $\mu $, the angle of incidence $i$ is nearly equal to

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