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BartSMP [9]
3 years ago
10

A beam of red and blue light in air is incident at 30º on a glass surface. Which is true?

Physics
1 answer:
Alex17521 [72]3 years ago
4 0

Answer:

a. The blue light is bent toward the normal more than the red light.

Explanation:

When light travels from a less dense medium, in this case air into a denser medium (glass) it is bent towards the normal because of the reduction in speed due to the dense medium.In this scenario we have the same incident angle of 30º. therefore, we consider the wavelength of the light because at shorter wavelengths we have more refraction occurring as compared to longer wavelengths. We know that Blue light has a shorter wavelength as compared to red light, which means it will bend toward the normal more than the red light.

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The statements given to describe the Earth are as follows:

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2 years ago
A cylinder 0.170 m in diameter rotates in a lathe at 530 rpm . what is the tangential speed of the surface of the cylinder?
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Diameter = 0.170 meter
Circumference = 0.170 π meters

530 rpm = 530 circumferences / minute

               =  (530 x 0.170 π meters) / minute

               =      283.06 meter.minute

               =        4.72 meters/second
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