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Amiraneli [1.4K]
3 years ago
14

Why does laser beam might appear blue and another laser beam might appear red?

Physics
1 answer:
lakkis [162]3 years ago
6 0
One thing about a laser is that the light it puts out is all one single sharp
color (wavelength) of light with no other wavelengths mixed in with it. 
That wavelength is a different one for the different kinds of material
that are used to do the "lasing" ... generating the light.  There are a
couple of different wavelengths of infrared lasers, and several different
types of lasers in the visible range.
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A force does work on an object if a component of the force:a. is perpendicular to the displacement of the object b. is parallel
MAVERICK [17]

As we know that total work done by a force is given by

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W = (Fcos\theta)(d)

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<u>b. is parallel to the displacement of the object</u>

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A TV satellite dish is designed to receive radio waves of wavelength
Verizon [17]

Answer:

4.7 GHz

Explanation:

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make f the subject of the equation

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From the question,

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The answer is D.

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