Polarisation
PHXII10:WAVE OPTICS

367846 A horizontal beam of vertically polarized light of intensity \(43\;W{\rm{/}}{m^2}\) is sent through two polarizing sheets. The polarizing direction of the first is \(60^{\circ}\) to the vertical, and that of the second is horizontal. The intensity of the transmitted by the pair of sheets is (nearly)

1 \(8.1\;W{\rm{/}}{m^2}\)
2 \(7.3\;W{\rm{/}}{m^2}\)
3 \(6.4\;W{\rm{/}}{m^2}\)
4 \(4\;W{\rm{/}}{m^2}\)
PHXII10:WAVE OPTICS

367847 A polaroid is placed at \(30^\circ \) to an incoming light of intensity \({I_0}\). Now the intensity of light passing through polaroid after polarisation would be

1 \(3{I_0}/4\)
2 \({I_0}/4\)
3 \({I_0}\)
4 Zero
PHXII10:WAVE OPTICS

367848 In case of linearly polarised light the magnitude of electric field vector

1 Increases and decreases linearly with time
2 Does not change with time
3 Is parallel to the direction of propagation
4 Varies periodically with time
PHXII10:WAVE OPTICS

367849 Two Polaroids \({P_1}\) and \({P_2}\) are placed with their axis perpendicular to each other. Unpolarised light \({I_0}\) 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 \(\frac{{{I_0}}}{4}\)
2 \(\frac{{{I_0}}}{8}\)
3 \(\frac{{{I_0}}}{{16}}\)
4 \(\frac{{{I_0}}}{2}\)
PHXII10:WAVE OPTICS

367846 A horizontal beam of vertically polarized light of intensity \(43\;W{\rm{/}}{m^2}\) is sent through two polarizing sheets. The polarizing direction of the first is \(60^{\circ}\) to the vertical, and that of the second is horizontal. The intensity of the transmitted by the pair of sheets is (nearly)

1 \(8.1\;W{\rm{/}}{m^2}\)
2 \(7.3\;W{\rm{/}}{m^2}\)
3 \(6.4\;W{\rm{/}}{m^2}\)
4 \(4\;W{\rm{/}}{m^2}\)
PHXII10:WAVE OPTICS

367847 A polaroid is placed at \(30^\circ \) to an incoming light of intensity \({I_0}\). Now the intensity of light passing through polaroid after polarisation would be

1 \(3{I_0}/4\)
2 \({I_0}/4\)
3 \({I_0}\)
4 Zero
PHXII10:WAVE OPTICS

367848 In case of linearly polarised light the magnitude of electric field vector

1 Increases and decreases linearly with time
2 Does not change with time
3 Is parallel to the direction of propagation
4 Varies periodically with time
PHXII10:WAVE OPTICS

367849 Two Polaroids \({P_1}\) and \({P_2}\) are placed with their axis perpendicular to each other. Unpolarised light \({I_0}\) 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 \(\frac{{{I_0}}}{4}\)
2 \(\frac{{{I_0}}}{8}\)
3 \(\frac{{{I_0}}}{{16}}\)
4 \(\frac{{{I_0}}}{2}\)
PHXII10:WAVE OPTICS

367846 A horizontal beam of vertically polarized light of intensity \(43\;W{\rm{/}}{m^2}\) is sent through two polarizing sheets. The polarizing direction of the first is \(60^{\circ}\) to the vertical, and that of the second is horizontal. The intensity of the transmitted by the pair of sheets is (nearly)

1 \(8.1\;W{\rm{/}}{m^2}\)
2 \(7.3\;W{\rm{/}}{m^2}\)
3 \(6.4\;W{\rm{/}}{m^2}\)
4 \(4\;W{\rm{/}}{m^2}\)
PHXII10:WAVE OPTICS

367847 A polaroid is placed at \(30^\circ \) to an incoming light of intensity \({I_0}\). Now the intensity of light passing through polaroid after polarisation would be

1 \(3{I_0}/4\)
2 \({I_0}/4\)
3 \({I_0}\)
4 Zero
PHXII10:WAVE OPTICS

367848 In case of linearly polarised light the magnitude of electric field vector

1 Increases and decreases linearly with time
2 Does not change with time
3 Is parallel to the direction of propagation
4 Varies periodically with time
PHXII10:WAVE OPTICS

367849 Two Polaroids \({P_1}\) and \({P_2}\) are placed with their axis perpendicular to each other. Unpolarised light \({I_0}\) 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 \(\frac{{{I_0}}}{4}\)
2 \(\frac{{{I_0}}}{8}\)
3 \(\frac{{{I_0}}}{{16}}\)
4 \(\frac{{{I_0}}}{2}\)
PHXII10:WAVE OPTICS

367846 A horizontal beam of vertically polarized light of intensity \(43\;W{\rm{/}}{m^2}\) is sent through two polarizing sheets. The polarizing direction of the first is \(60^{\circ}\) to the vertical, and that of the second is horizontal. The intensity of the transmitted by the pair of sheets is (nearly)

1 \(8.1\;W{\rm{/}}{m^2}\)
2 \(7.3\;W{\rm{/}}{m^2}\)
3 \(6.4\;W{\rm{/}}{m^2}\)
4 \(4\;W{\rm{/}}{m^2}\)
PHXII10:WAVE OPTICS

367847 A polaroid is placed at \(30^\circ \) to an incoming light of intensity \({I_0}\). Now the intensity of light passing through polaroid after polarisation would be

1 \(3{I_0}/4\)
2 \({I_0}/4\)
3 \({I_0}\)
4 Zero
PHXII10:WAVE OPTICS

367848 In case of linearly polarised light the magnitude of electric field vector

1 Increases and decreases linearly with time
2 Does not change with time
3 Is parallel to the direction of propagation
4 Varies periodically with time
PHXII10:WAVE OPTICS

367849 Two Polaroids \({P_1}\) and \({P_2}\) are placed with their axis perpendicular to each other. Unpolarised light \({I_0}\) 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 \(\frac{{{I_0}}}{4}\)
2 \(\frac{{{I_0}}}{8}\)
3 \(\frac{{{I_0}}}{{16}}\)
4 \(\frac{{{I_0}}}{2}\)