In a system of two crossed polarisers, it is found that the intensity of light from the second
polarizer is half from that of first polarizer. The angle between their pass axes is
a)pi/4 b)pi/6 c)pi/3 d)pi/2

Question

In a system of two crossed polarisers, it is found that the intensity of light from the second
polarizer is half from that of first polarizer. The angle between their pass axes is

a)pi/4 b)pi/6 c)pi/3 d)pi/2

Vikas TU · Answer

As we all know that I(final) = I (initial) cos 2 Ѳ I /2= I cos 2 Ѳ ½ = cos 2 Ѳ cos Ѳ = 1/√2 Ѳ = pi/4 Option 1 is correct

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In a system of two crossed polarisers, it is found that the intensity of light from the second polarizer is half from that of first polarizer. The angle between their pass axes is a)pi/4 b)pi/6 c)pi/3 d)pi/2

In a system of two crossed polarisers, it is found that the intensity of light from the second
polarizer is half from that of first polarizer. The angle between their pass axes is
a)pi/4 b)pi/6 c)pi/3 d)pi/2

1 Answers

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In a system of two crossed polarisers, it is found that the intensity of light from the second polarizer is half from that of first polarizer. The angle between their pass axes is a)pi/4 b)pi/6 c)pi/3 d)pi/2

In a system of two crossed polarisers, it is found that the intensity of light from the secondpolarizer is half from that of first polarizer. The angle between their pass axes isa)pi/4 b)pi/6 c)pi/3 d)pi/2

1 Answers

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In a system of two crossed polarisers, it is found that the intensity of light from the second
polarizer is half from that of first polarizer. The angle between their pass axes is
a)pi/4 b)pi/6 c)pi/3 d)pi/2