Polarisation
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII10:WAVE OPTICS

367859 Unpolarized light of intensity \(32\;W{m^{ - 2}}\) passes through three polarisers such that the transmission axis of the last polariser is crossed with first. If the intensity of the emerging light is \(3\;W{m^{ - 2}}\), the angle between the axes of the first two polarisers is

1 \(45^{\circ}\)
2 \(37^{\circ}\)
3 \(30^{\circ}\)
4 Zero
PHXII10:WAVE OPTICS

367860 Unpolarised light of intensity \(I_{0}\) is incident on surface of a block of glass at Brewster's angle. In that case, which one of the following statements is true?

1 Reflected light is completely polarised with intensity less than \(\frac{{{I_0}}}{2}\)
2 Transmitted light is completely polarised with intensity less than \(\frac{{{I_0}}}{2}\)
3 Transmitted light is partially polarised with
\({\rm{intensity}}\,\frac{{{I_0}}}{2}\)
4 Reflected light is partially polarised with
\({\rm{intensity}}\,\frac{{{I_0}}}{2}\)
PHXII10:WAVE OPTICS

367861 When a polaroid sheet is rotated between two crossed polaroids then the transmitted light intensity will be maximum for a rotation of:

1 \(60^\circ \)
2 \(30^\circ \)
3 \(90^\circ \)
4 \(45^\circ \)
PHXII10:WAVE OPTICS

367862 A polarized light of intensity \({I_0}\) is passed through another polarizer whose pass axis makes an angle of \(60^\circ \) with the pass axis of the former. What is the intensity of emergent polarized light from second polarizer ?

1 \(I = {I_0}{\rm{/}}5\)
2 \(I = {I_0}\)
3 \({I_0}{\rm{/}}4\)
4 \(I = {I_0}{\rm{/}}6\)
PHXII10:WAVE OPTICS

367859 Unpolarized light of intensity \(32\;W{m^{ - 2}}\) passes through three polarisers such that the transmission axis of the last polariser is crossed with first. If the intensity of the emerging light is \(3\;W{m^{ - 2}}\), the angle between the axes of the first two polarisers is

1 \(45^{\circ}\)
2 \(37^{\circ}\)
3 \(30^{\circ}\)
4 Zero
PHXII10:WAVE OPTICS

367860 Unpolarised light of intensity \(I_{0}\) is incident on surface of a block of glass at Brewster's angle. In that case, which one of the following statements is true?

1 Reflected light is completely polarised with intensity less than \(\frac{{{I_0}}}{2}\)
2 Transmitted light is completely polarised with intensity less than \(\frac{{{I_0}}}{2}\)
3 Transmitted light is partially polarised with
\({\rm{intensity}}\,\frac{{{I_0}}}{2}\)
4 Reflected light is partially polarised with
\({\rm{intensity}}\,\frac{{{I_0}}}{2}\)
PHXII10:WAVE OPTICS

367861 When a polaroid sheet is rotated between two crossed polaroids then the transmitted light intensity will be maximum for a rotation of:

1 \(60^\circ \)
2 \(30^\circ \)
3 \(90^\circ \)
4 \(45^\circ \)
PHXII10:WAVE OPTICS

367862 A polarized light of intensity \({I_0}\) is passed through another polarizer whose pass axis makes an angle of \(60^\circ \) with the pass axis of the former. What is the intensity of emergent polarized light from second polarizer ?

1 \(I = {I_0}{\rm{/}}5\)
2 \(I = {I_0}\)
3 \({I_0}{\rm{/}}4\)
4 \(I = {I_0}{\rm{/}}6\)
PHXII10:WAVE OPTICS

367859 Unpolarized light of intensity \(32\;W{m^{ - 2}}\) passes through three polarisers such that the transmission axis of the last polariser is crossed with first. If the intensity of the emerging light is \(3\;W{m^{ - 2}}\), the angle between the axes of the first two polarisers is

1 \(45^{\circ}\)
2 \(37^{\circ}\)
3 \(30^{\circ}\)
4 Zero
PHXII10:WAVE OPTICS

367860 Unpolarised light of intensity \(I_{0}\) is incident on surface of a block of glass at Brewster's angle. In that case, which one of the following statements is true?

1 Reflected light is completely polarised with intensity less than \(\frac{{{I_0}}}{2}\)
2 Transmitted light is completely polarised with intensity less than \(\frac{{{I_0}}}{2}\)
3 Transmitted light is partially polarised with
\({\rm{intensity}}\,\frac{{{I_0}}}{2}\)
4 Reflected light is partially polarised with
\({\rm{intensity}}\,\frac{{{I_0}}}{2}\)
PHXII10:WAVE OPTICS

367861 When a polaroid sheet is rotated between two crossed polaroids then the transmitted light intensity will be maximum for a rotation of:

1 \(60^\circ \)
2 \(30^\circ \)
3 \(90^\circ \)
4 \(45^\circ \)
PHXII10:WAVE OPTICS

367862 A polarized light of intensity \({I_0}\) is passed through another polarizer whose pass axis makes an angle of \(60^\circ \) with the pass axis of the former. What is the intensity of emergent polarized light from second polarizer ?

1 \(I = {I_0}{\rm{/}}5\)
2 \(I = {I_0}\)
3 \({I_0}{\rm{/}}4\)
4 \(I = {I_0}{\rm{/}}6\)
PHXII10:WAVE OPTICS

367859 Unpolarized light of intensity \(32\;W{m^{ - 2}}\) passes through three polarisers such that the transmission axis of the last polariser is crossed with first. If the intensity of the emerging light is \(3\;W{m^{ - 2}}\), the angle between the axes of the first two polarisers is

1 \(45^{\circ}\)
2 \(37^{\circ}\)
3 \(30^{\circ}\)
4 Zero
PHXII10:WAVE OPTICS

367860 Unpolarised light of intensity \(I_{0}\) is incident on surface of a block of glass at Brewster's angle. In that case, which one of the following statements is true?

1 Reflected light is completely polarised with intensity less than \(\frac{{{I_0}}}{2}\)
2 Transmitted light is completely polarised with intensity less than \(\frac{{{I_0}}}{2}\)
3 Transmitted light is partially polarised with
\({\rm{intensity}}\,\frac{{{I_0}}}{2}\)
4 Reflected light is partially polarised with
\({\rm{intensity}}\,\frac{{{I_0}}}{2}\)
PHXII10:WAVE OPTICS

367861 When a polaroid sheet is rotated between two crossed polaroids then the transmitted light intensity will be maximum for a rotation of:

1 \(60^\circ \)
2 \(30^\circ \)
3 \(90^\circ \)
4 \(45^\circ \)
PHXII10:WAVE OPTICS

367862 A polarized light of intensity \({I_0}\) is passed through another polarizer whose pass axis makes an angle of \(60^\circ \) with the pass axis of the former. What is the intensity of emergent polarized light from second polarizer ?

1 \(I = {I_0}{\rm{/}}5\)
2 \(I = {I_0}\)
3 \({I_0}{\rm{/}}4\)
4 \(I = {I_0}{\rm{/}}6\)