Statement-$1$: The blue part of the sky is clearly visible through a calcite crystal. The intensity of the transmitted light changes as the crystal is rotated.
Statement-$2$: Light from the sky is due to the scattering of sunlight by particles in the atmosphere.
Statement-$2$: Light from the sky is due to the scattering of sunlight by particles in the atmosphere.
- AStatement-$1$ is false,Statement-$2$ is true.
- BStatement-$1$ is true,Statement-$2$ is false.
- CStatement-$1$ is true,Statement-$2$ is true,and Statement-$2$ is the correct explanation of Statement-$1$.
- DStatement-$1$ is true,Statement-$2$ is true,and Statement-$2$ is not the correct explanation of Statement-$1$.
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Similar Questions
An unpolarized light passes through three polarizing sheets whose polarizing directions make an angle of $30^o$,$60^o$,and $30^o$ with the $y$-axis in the same sense. What fraction of the initial intensity is transmitted by the system?
Medium
View SolutionUnpolarised light from air is incident on the surface of a transparent medium of refractive index $1.414$ such that the reflected light is completely polarised. Match the angles given in List-$I$ with the corresponding values given in List-$II$.
$A$. Angle of reflection $(i)$ $2 \sin^{-1} \left(\sqrt{\frac{2}{3}}\right)$ $B$. Angle of refraction $(ii)$ $\sin^{-1} \left(\sqrt{\frac{2}{3}}\right) - \sin^{-1} \left(\frac{1}{\sqrt{3}}\right)$ $C$. Angle between incident and completely polarised light $(iii)$ $\sin^{-1} \left(\frac{1}{\sqrt{3}}\right)$ $D$. Angle of deviation of the incident ray $(iv)$ $\cos^{-1} \left(\frac{1}{\sqrt{3}}\right)$
| $A$. Angle of reflection | $(i)$ $2 \sin^{-1} \left(\sqrt{\frac{2}{3}}\right)$ |
| $B$. Angle of refraction | $(ii)$ $\sin^{-1} \left(\sqrt{\frac{2}{3}}\right) - \sin^{-1} \left(\frac{1}{\sqrt{3}}\right)$ |
| $C$. Angle between incident and completely polarised light | $(iii)$ $\sin^{-1} \left(\frac{1}{\sqrt{3}}\right)$ |
| $D$. Angle of deviation of the incident ray | $(iv)$ $\cos^{-1} \left(\frac{1}{\sqrt{3}}\right)$ |
Polarised glass is used in sunglasses because
Easy
View SolutionWhich of the following statements indicates that light waves are transverse?
Easy
View SolutionTwo polaroids are oriented with their planes perpendicular to incident light and their transmission axes making an angle of $30^{\circ}$ with each other. What fraction of the incident unpolarised light is transmitted? (Express as a percentage)
Difficult
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