   Chapter 27, Problem 85PE

Chapter
Section
Textbook Problem

The angle between the axes of two polarizing filters is 45.0°. By how much does the second filter reduce the intensity of the light coming through the first?

To determine

By how much does the second filter reduce the intensity of light coming through the first filter?

Explanation

Given info:

Angle between two filter, θ=45°

Formula used:

The intensity of the transmitted wave is related to the incident wave by

I=Iocos2θ

Here,

I is the intensity of transmitted light

Io is the intensity of incident wave

θ is the angle between the direction of polarized light and the axis of polarizing filter

Calculation:

Let the intensity of the incident wave coming fro

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