On a polarizing sheet a mixture of plane polarised and unpolarised light falls normally. On rotating the polarising sheet about the direction of the incident beam, the transmitted maximum and minimum intensities vary by a factor 4. The ratio of the intensities of polarised and unpolarised light is ?
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Assignment Expert
17.04.14, 18:02
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Sanjeev
16.04.14, 22:32
THANK U VERY MUCH..WELL EXPLAINED..
Assignment Expert
16.04.14, 20:33
Intensity of unpolarized light always halved and it does not depend on
the polarizer orientation. Thus we write I_u/2. Linearly polarized
light passes through polarizer without change when direction of
polarizer's axis and polarization of light coincide, thus we add I_p
to I_u/2 to obtain I_max. And when polarizer's axis and polarization
of light are orthogonal, polarized light does not pass through
polarizer. So we write I_min = 0 + I_u/2 = I_u/2.
Sanjeev
16.04.14, 19:06
Did not understand the answer.Plz explain again.
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Dear Sanjeev. You're welcome. We are glad to be helpful. If you really liked our service please press like-button beside answer field. Thank you!
THANK U VERY MUCH..WELL EXPLAINED..
Intensity of unpolarized light always halved and it does not depend on the polarizer orientation. Thus we write I_u/2. Linearly polarized light passes through polarizer without change when direction of polarizer's axis and polarization of light coincide, thus we add I_p to I_u/2 to obtain I_max. And when polarizer's axis and polarization of light are orthogonal, polarized light does not pass through polarizer. So we write I_min = 0 + I_u/2 = I_u/2.
Did not understand the answer.Plz explain again.
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