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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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scZoUnD [109]
The correct option is (B) <span>Aluminum is a metal and is shiny, malleable, ductile, conducts heat and electricity, forms basic oxides, and forms cations in aqueous solution.

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4 0
3 years ago
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sveta [45]

Answer:

5 seconds

Explanation:

<em>Acceleration = (final velocity - initial velocity) ÷ time</em>

<em>a =  \frac{v - u}{t}</em>

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<em>9.8 =  \frac{49}{t}</em>

<em>9.8t = 49</em>

<em>t =  \frac{49}{9.8}</em>

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8 0
2 years ago
A car is moving at a constant speed of 100 miles per hour. how long does it take for the car to travel 200 miles.
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Answer:

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Explanation:

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4 0
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Answer:

F = 1400 N

Explanation:

It is given that,

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Force is given by the product of mass and acceleration. So,

F = ma

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So, the force of 1400 N is exerted by a metal ball.

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3 years ago
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85 protons are in astatine have.

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3 years ago
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