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CaHeK987 [17]
3 years ago
15

Unpolarized light passes through two polarizers. Find the fraction of light from the first polarizer that gets through the secon

d when the angle between their transmission axes is 60 degree.
Physics
2 answers:
meriva3 years ago
8 0

Answer:

0.5

Explanation:

Data provided in the question:

The angle between their transmission axes, θ = 60°

Now,

We have the relation,

I₁ = I₀cos²θ

where,

I₁ is the intensity of the transmitted light

I₀ is the intensity of the incident light

on rearranging, we get

\frac{I_1}{I_0}=cos²60°

or

\frac{I_1}{I_0}=0.5

klasskru [66]3 years ago
7 0

Answer:

1/4

Explanation:

Let I₀ be the intensity of polarised light from first polariser . After first polarisation, in the second polarisation, intensity changes as follows

I = I₀  Cos² θ⁰

I = I₀  Cos² 60⁰

=  I₀  1 / 2² = I₀ / 4

So , 1/4 or one fourth of intensity from first polariser gets through the second polariser.

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