Ray Optics and Optical Instruments

Related Questions

• If ${{\mu }_{_{0}}}$ be the relative permeability and ${{K}_{0}}$ the dielectric constant of a medium, its refractive index is given by

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• A prism of refracting angle $60^o$ is made with a material of refractive index $\mu$. For a certain wavelength of light, the angle of minimum deviation is $30^o$. For this, wavelength the value of refractive index of the material is

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• A presbyopic patient has near point as 30 cm and far point as 40 cm. The dioptric power for the corrective lens for seeing distant objects is

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• Angle of deviation $(\delta $) by a prism (refractive index = $\mu $ and supposing the angle of prism A to be small) can be given by

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• If $\hat{i}$ denotes a unit vector along incident light ray, $\hat{r}$ a unit vector along refracted ray into a medium of refractive index $\mu $ and $\hat{n}$ unit vector normal to boundary of medium directed towards incident medium, then law of refraction is

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