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Amplify Light Waves

Authored by Lisa Thompson

Science

8th Grade

NGSS covered

Amplify Light Waves
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When measuring a wavelength, what is it called when you measure the entire height of the wave?

expression

amplitude

transmition

energy

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

These graphs show the wavelength and amplitude of light coming from three lasers. Could any of these lasers be giving off a different type of light?

Yes. Laser 2 could be giving off a different type of light because Laser 2 has a different wavelength than Lasers 1 and 3.

Yes. Laser 3 could be giving off a different type of light because Laser 3 has a different amplitude than Lasers 1 and 2.

Yes. All three lasers must be giving off different types of light because every light source gives off its own type of light.

No. All three lasers must be giving off the same type of light because all three are lasers, and the same kind of light source gives off the same type of light.

Tags

NGSS.HS-PS4-1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The height of the wave is called the

wavelength

wave speed

amplitude

frequency

Tags

NGSS.MS-PS4-1

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the process of increasing the intensity of light waves called?

Reflection

Refraction

Amplification

Diffraction

Tags

NGSS.MS-PS4-1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which device is commonly used to amplify light waves in optical communication?

Photodiode

Laser

Optical fiber

Prism

Tags

NGSS.HS-PS4-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In a laser, what component is responsible for amplifying light waves?

Gain medium

Reflector

Lens

Diode

Tags

NGSS.HS-PS4-3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the principle behind the amplification of light in a laser?

Spontaneous emission

Stimulated emission

Absorption

Reflection

Tags

NGSS.HS-PS4-3

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