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Troyanec [42]
3 years ago
11

What angle is needed between the direction of polarized light and the axis of a polarizing filter to cut its intensity in half?

Physics
1 answer:
cricket20 [7]3 years ago
8 0

Answer:

45 degree

Explanation:

Let the initial intensity is Io and the angle between the polarizer and the axis of filter is θ.

The intensity of light passing after filter is 0.5 Io.

By using the law of Malus,

I=I_{0} Cos^{2}\theta

0.5I_{0}=I_{0} Cos^{2}\theta

0.5= Cos^{2}\theta

0.707= Cos\theta

θ = 45 degree

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Answer:

onservation of energy

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3 years ago
An object of irregular shape has a characteristic length of L = 0.5 m and is maintained at a uniform surface temperature of Ts =
goblinko [34]

Answer:

The value of the average convection coefficient is 20 W/Km².

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