Ray Optics and Optical Instruments

Related Questions

• Focal length of a converging lens in air is R. If it is dipped in water of refractive index 1.33, then its focal length will be around (Refractive index of lens material is 1.5)

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• To increase both the resolving power and magnifying power of a telescope

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• Two thin lenses of focal lengths ${{f}_{1}}$ and ${{f}_{2}}$ are in contact and coaxial. The combination is equivalent to a single lens of power

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• Electromagnetic radiation of frequency $n$, wavelength $\lambda $, travelling with velocity v in air, enters a glass slab of refractive index $\mu $. The frequency, wavelength and velocity of light in the glass slab will be respectively

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• Match List I with List II and select the correct answer using the codes given below the lists :

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