Unpolarized light with an intensity of 5.40 W/m 2 passes through a polarizer who

Question

Unpolarized light with an intensity of 5.40 W/m2 passes through a polarizer whose transmission axis is tilted at an angle of = 65.0° clockwise relative to the vertical.

What is the intensity of the light once it has passed through the polarizer?

What is the angle of polarization of the light once it has passed through the polarizer? Measure the angle relative to the vertical. (Use deg for degrees.) CW, CCW

Linearly polarized light with an intensity of 6.10 W/m2 passes through a polarizer whose transmission axis is tilted at an angle of = 51.0° clockwise relative to the vertical. The polarization angle, , for the incoming light is 20.4°.

What is the intensity of the light once it has passed through the polarizer?

What is the angle of polarization of the light once it has passed through the polarizer? Measure the angle relative to the vertical. (Use deg for degrees.) CW, CCW?

Explanation / Answer

unpolarized light becomes polarized along the axis and intensity get halved.

I = I0/2 = 2.70 W/m^2 .......Ans

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angle = 65 deg clockwise

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theta = 51 - 20.4 = 30.6 deg

I = I0 (cos36)^2 { for polarized light}

I = 4 W/m^2 .......Ans

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angle = 51 deg clockwise

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