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photoshop1234 [79]
2 years ago
9

The angle between the incident ray and reflected ray is 90°. Calculate the angle of incidence and the angle of reflection.​

Physics
1 answer:
vodomira [7]2 years ago
8 0

Answer:

considering the 90both should be 45° each

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The correct answer is option (C) the temperature of the shirt will increase because all wavelengths of light are absorbed by the shirt.

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rjkz [21]
Given:
distance from the projector lens to the image, di
projector lens focal length, f
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thin lens equation: 1/f = 1/di + 1/do
do = 4 inches
di = 8 feet

convert feet to inches, for uniformity.
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Adding fractions, denominator must be the same.

1/f = (1/96 * 1/1) + (1/4 * 24/24)
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to find the value of f, do cross multiplication
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The focal length of the project lens is 3.84 inches 

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