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adelina 88 [10]
2 years ago
11

Unpolarized light is passed through three successive polaroid filters, each with its transmission axis at 32. 8° to the precedin

g filter. What percentage of light gets through?
Physics
1 answer:
Oliga [24]2 years ago
6 0

The percentage of light gets through three successive polarized filters is 24.9 %

From the question,

Given that,

Angle of transmission axis = 32.8°

The intensity of light emerging from the first polarizer is determined by the equation

I₁ = I₀ / 2

where I₀ ⇒ intensity of unpolarized light

The light emerging from the second polarizer can be mathematically represented by,

I₂ = I₁ x cos²θ

Substituting the values,

I₂ =( I₀/2) x cos²θ

  = (I₀/2) x cos² (32.8 )

  = (I₀/2) x 0.706

  = (0.706 / 2 ) x I₀

The light emerging from the third polarizer is represented as,

I₃ = I₂ x cos²θ

Substituting the values in the above equation,

I₃ = ( 0.706 / 2 ) I₀ x cos² (32.8)

  = (0.706 / 2 ) I₀ x 0.706

  = 0.249 I₀

The percentage of intensity of light  that gwts through with respect to the intensity of unpolarized light is given by the equation,

(I₃ / I₀) x 100

Substituting the values

[(0.249 x I₀) / I₀ ] x 100 = 24.9 %

Hence the percentage of light gets through is 24.9%

To learn more about unpolarized light: brainly.com/question/17164167

#SPJ4

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