Polarization of Light
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283603 The Brewster's law is given by the expression

1 \(\mu=\frac{\sin \mathrm{i}}{\sin \mathrm{r}}\)
2 \(\mu=\tan \theta_p\)
3 \(\mu=\cos \theta\)
4 \(\mu=\sin \theta\)
J and K-CET-2013
WAVE OPTICS

283604 Totally unpolarized light of intensity \(I_0\) is incident normally on a polarizer, and the emerging light is made to pass through a second, parallel polarizer with its axis making an angle of \(60^{\circ}\) with that of the first. What is the intensity of light emerging out of the second polarizer?

1 Zero
2 \(\frac{\mathrm{I}_0}{8}\)
3 \(\frac{\mathrm{I}_0}{4}\)
4 \(\frac{\mathrm{I}_0}{16}\)
J and K-CET-2012
WAVE OPTICS

283608 Two polarising sheets are placed parallel with their polarising axes. The intensity of emergent light is \(I_m\). Now, one of the sheets is rotated through an angle \(\theta\), the intensity varies according to relation \(I=I_{\mathrm{m}} \cos ^2 \theta\). If the intensity of emergent light is reduced to half (i.e. \(\frac{I_{\mathrm{m}}}{2}\) ) then the angle \(\boldsymbol{\theta}\) will be

1 \(\pm 30^{\circ}\) and \(\pm 135^{\circ}\)
2 \(\pm 45^{\circ}\) and \(\pm 120^{\circ}\)
3 \(\pm 30^{\circ}\) and \(\pm 120^{\circ}\)
4 \(\pm 45^{\circ}\) and \(\pm 135^{\circ}\)
UP CPMT-2002
WAVE OPTICS

283610 Light travels with a speed of \(2 \times 10^8 \mathrm{~m} / \mathrm{s}\) in crown glass of refractive index 1.5. What is the speed of light in dense flint glass of refractive index 1.8?

1 \(1.33 \times 10^8 \mathrm{~m} / \mathrm{s}\)
2 \(1.67 \times 10^8 \mathrm{~m} / \mathrm{s}\)
3 \(2.0 \times 10^8 \mathrm{~m} / \mathrm{s}\)
4 \(3.0 \times 10^8 \mathrm{~m} / \mathrm{s}\)
VITEEE-2008
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WAVE OPTICS

283603 The Brewster's law is given by the expression

1 \(\mu=\frac{\sin \mathrm{i}}{\sin \mathrm{r}}\)
2 \(\mu=\tan \theta_p\)
3 \(\mu=\cos \theta\)
4 \(\mu=\sin \theta\)
J and K-CET-2013
WAVE OPTICS

283604 Totally unpolarized light of intensity \(I_0\) is incident normally on a polarizer, and the emerging light is made to pass through a second, parallel polarizer with its axis making an angle of \(60^{\circ}\) with that of the first. What is the intensity of light emerging out of the second polarizer?

1 Zero
2 \(\frac{\mathrm{I}_0}{8}\)
3 \(\frac{\mathrm{I}_0}{4}\)
4 \(\frac{\mathrm{I}_0}{16}\)
J and K-CET-2012
WAVE OPTICS

283608 Two polarising sheets are placed parallel with their polarising axes. The intensity of emergent light is \(I_m\). Now, one of the sheets is rotated through an angle \(\theta\), the intensity varies according to relation \(I=I_{\mathrm{m}} \cos ^2 \theta\). If the intensity of emergent light is reduced to half (i.e. \(\frac{I_{\mathrm{m}}}{2}\) ) then the angle \(\boldsymbol{\theta}\) will be

1 \(\pm 30^{\circ}\) and \(\pm 135^{\circ}\)
2 \(\pm 45^{\circ}\) and \(\pm 120^{\circ}\)
3 \(\pm 30^{\circ}\) and \(\pm 120^{\circ}\)
4 \(\pm 45^{\circ}\) and \(\pm 135^{\circ}\)
UP CPMT-2002
WAVE OPTICS

283610 Light travels with a speed of \(2 \times 10^8 \mathrm{~m} / \mathrm{s}\) in crown glass of refractive index 1.5. What is the speed of light in dense flint glass of refractive index 1.8?

1 \(1.33 \times 10^8 \mathrm{~m} / \mathrm{s}\)
2 \(1.67 \times 10^8 \mathrm{~m} / \mathrm{s}\)
3 \(2.0 \times 10^8 \mathrm{~m} / \mathrm{s}\)
4 \(3.0 \times 10^8 \mathrm{~m} / \mathrm{s}\)
VITEEE-2008
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WAVE OPTICS

283603 The Brewster's law is given by the expression

1 \(\mu=\frac{\sin \mathrm{i}}{\sin \mathrm{r}}\)
2 \(\mu=\tan \theta_p\)
3 \(\mu=\cos \theta\)
4 \(\mu=\sin \theta\)
J and K-CET-2013
WAVE OPTICS

283604 Totally unpolarized light of intensity \(I_0\) is incident normally on a polarizer, and the emerging light is made to pass through a second, parallel polarizer with its axis making an angle of \(60^{\circ}\) with that of the first. What is the intensity of light emerging out of the second polarizer?

1 Zero
2 \(\frac{\mathrm{I}_0}{8}\)
3 \(\frac{\mathrm{I}_0}{4}\)
4 \(\frac{\mathrm{I}_0}{16}\)
J and K-CET-2012
WAVE OPTICS

283608 Two polarising sheets are placed parallel with their polarising axes. The intensity of emergent light is \(I_m\). Now, one of the sheets is rotated through an angle \(\theta\), the intensity varies according to relation \(I=I_{\mathrm{m}} \cos ^2 \theta\). If the intensity of emergent light is reduced to half (i.e. \(\frac{I_{\mathrm{m}}}{2}\) ) then the angle \(\boldsymbol{\theta}\) will be

1 \(\pm 30^{\circ}\) and \(\pm 135^{\circ}\)
2 \(\pm 45^{\circ}\) and \(\pm 120^{\circ}\)
3 \(\pm 30^{\circ}\) and \(\pm 120^{\circ}\)
4 \(\pm 45^{\circ}\) and \(\pm 135^{\circ}\)
UP CPMT-2002
WAVE OPTICS

283610 Light travels with a speed of \(2 \times 10^8 \mathrm{~m} / \mathrm{s}\) in crown glass of refractive index 1.5. What is the speed of light in dense flint glass of refractive index 1.8?

1 \(1.33 \times 10^8 \mathrm{~m} / \mathrm{s}\)
2 \(1.67 \times 10^8 \mathrm{~m} / \mathrm{s}\)
3 \(2.0 \times 10^8 \mathrm{~m} / \mathrm{s}\)
4 \(3.0 \times 10^8 \mathrm{~m} / \mathrm{s}\)
VITEEE-2008
NEET DIGITAL LIBRARY
WAVE OPTICS

283603 The Brewster's law is given by the expression

1 \(\mu=\frac{\sin \mathrm{i}}{\sin \mathrm{r}}\)
2 \(\mu=\tan \theta_p\)
3 \(\mu=\cos \theta\)
4 \(\mu=\sin \theta\)
J and K-CET-2013
WAVE OPTICS

283604 Totally unpolarized light of intensity \(I_0\) is incident normally on a polarizer, and the emerging light is made to pass through a second, parallel polarizer with its axis making an angle of \(60^{\circ}\) with that of the first. What is the intensity of light emerging out of the second polarizer?

1 Zero
2 \(\frac{\mathrm{I}_0}{8}\)
3 \(\frac{\mathrm{I}_0}{4}\)
4 \(\frac{\mathrm{I}_0}{16}\)
J and K-CET-2012
WAVE OPTICS

283608 Two polarising sheets are placed parallel with their polarising axes. The intensity of emergent light is \(I_m\). Now, one of the sheets is rotated through an angle \(\theta\), the intensity varies according to relation \(I=I_{\mathrm{m}} \cos ^2 \theta\). If the intensity of emergent light is reduced to half (i.e. \(\frac{I_{\mathrm{m}}}{2}\) ) then the angle \(\boldsymbol{\theta}\) will be

1 \(\pm 30^{\circ}\) and \(\pm 135^{\circ}\)
2 \(\pm 45^{\circ}\) and \(\pm 120^{\circ}\)
3 \(\pm 30^{\circ}\) and \(\pm 120^{\circ}\)
4 \(\pm 45^{\circ}\) and \(\pm 135^{\circ}\)
UP CPMT-2002
WAVE OPTICS

283610 Light travels with a speed of \(2 \times 10^8 \mathrm{~m} / \mathrm{s}\) in crown glass of refractive index 1.5. What is the speed of light in dense flint glass of refractive index 1.8?

1 \(1.33 \times 10^8 \mathrm{~m} / \mathrm{s}\)
2 \(1.67 \times 10^8 \mathrm{~m} / \mathrm{s}\)
3 \(2.0 \times 10^8 \mathrm{~m} / \mathrm{s}\)
4 \(3.0 \times 10^8 \mathrm{~m} / \mathrm{s}\)
VITEEE-2008
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