If the light is polarised by reflection, then the angle between reflected and refracted light is:

1. \(\pi\) 2. \(\dfrac{\pi}{2}\)
3. \(2\pi\) 4. \(\dfrac{\pi}{4}\)
Subtopic:  Polarization of Light |
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If the polarising angle for a material is \(60^{\circ},\) then the refractive index of the material will be:
1. \(\dfrac{1}{\sqrt{3}}\) 2. \(\dfrac{3}{2}\)
3. \(\sqrt{3}\) 4. \(\dfrac{\sqrt{3}}{2}\)
Subtopic:  Polarization of Light |
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A plane-polarized light with intensity \(I_0\) is incident on a polaroid with an electric field vector making an angle of \(60^{\circ}\) with the transmission axis of the polaroid. The intensity of the resulting light will be:

1. \(\dfrac{I_0}{4}\) 2. \(I_0\)
3. \(2I_0\) 4. \(\dfrac{I_0}{2}\)
Subtopic:  Polarization of Light |
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Which of the following statements indicates that light waves are transverse? 

1. Light waves can travel in a vacuum.
2. Light waves show interference.
3. Light waves can be polarized.
4. Light waves can be diffracted.

Subtopic:  Polarization of Light |
 76%
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Five identical polaroids are placed coaxially with \(45^{\circ}\) angular separation between pass axes of adjacent polaroids as shown in the figure. (\(I_0\): Intensity of unpolarized light)
          
The intensity of light, \(I\), emerging out of the \(5\)th polaroid is:

1. \(\dfrac{I_0}{4}\) 2. \(\dfrac{I_0}{8}\)
3. \(\dfrac{I_0}{16}\) 4. \(\dfrac{I_0}{32}\)
Subtopic:  Polarization of Light |
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Two polaroids \(P_1\) and \(P_2\) are placed with their axis perpendicular to each other. Unpolarised light of intensity \(I_0\) is incident on \(P_1\). A third polaroid \(P_3\) is kept in between \(P_1\) and \(P_2\) such that its axis makes an angle \(45^{\circ}\) with that of \(P_1\). The intensity of transmitted light through \(P_2\) is:
1. \(\dfrac{I_0}{4}\) 2. \(\dfrac{I_0}{8}\)
3. \(\dfrac{I_0}{16}\) 4. \(\dfrac{I_0}{2}\)
Subtopic:  Polarization of Light |
 78%
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NEET - 2017

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Unpolarized light of intensity \(32\) Wm–2 passes through three polarizers such that the transmission axes of the first and second polarizer make an angle of \(30^{\circ}\) with each other and the transmission axis of the last polarizer is crossed with that of the first. The intensity of the final emerging light will be:
1. \(32\) Wm–2
2. \(3\) Wm–2
3. \(8\) Wm–2
4. \(4\) Wm–2

Subtopic:  Polarization of Light |
 66%
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