Amplify Light Waves

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

• expression

• amplitude

• transmition

• energy

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.

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NGSS.HS-PS4-1

The height of the wave is called the

• wavelength

• wave speed

• amplitude

• frequency

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NGSS.MS-PS4-1

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

• Reflection

• Refraction

• Amplification

• Diffraction

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NGSS.MS-PS4-1

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

• Photodiode

• Laser

• Optical fiber

• Prism

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NGSS.HS-PS4-5

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

• Gain medium

• Reflector

• Lens

• Diode

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NGSS.HS-PS4-3

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

• Spontaneous emission

• Stimulated emission

• Absorption

• Reflection

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NGSS.HS-PS4-3

Which of the following is a real-world application of light wave amplification?

• Solar panels

• Fiber optic communication

• Thermal imaging

• X-ray imaging

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NGSS.HS-PS4-3

NGSS.HS-PS4-5

What is the term for the amplification of light waves in a medium without the use of a laser?

• Optical gain

• Optical loss

• Optical density

• Optical path

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NGSS.HS-PS4-5

Which experiment demonstrated the amplification of light waves through stimulated emission?

• Young's double-slit experiment

• Michelson-Morley experiment

• Einstein's photoelectric effect

• Maser experiment