Amplify Light Waves

Which letter represents wavelength?

• A

• B

• C

• D

Tags

NGSS.HS-PS4-1

Which wave has the greatest amplitude?

• The blue wave

• The red wave

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NGSS.HS-PS4-5

Which letter represents the wave crest?

• A

• B

• C

• D

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NGSS.HS-PS4-1

NGSS.HS-PS4-5

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.

• No. All three lasers must be giving off the same type of light because all three are lasers.

Tags

NGSS.HS-PS4-1

What is the primary function of a laser in amplifying light waves?

• To increase the frequency of light

• To increase the amplitude of light

• To increase the coherence of light

• To increase the speed of light

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NGSS.HS-PS4-3

NGSS.HS-PS4-5

Which component of a laser is responsible for amplifying light waves?

• The optical cavity

• The gain medium

• The power supply

• The cooling system

In the context of light amplification, what does the term 'population inversion' refer to?

• More electrons in the lower energy state than the higher energy state

• Equal number of electrons in both energy states

• More electrons in the higher energy state than the lower energy state

• No electrons in the energy states

Which of the following is a common application of amplified light waves?

• Radio broadcasting

• Medical imaging

• Laser cutting

• Ultrasound scanning

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NGSS.HS-PS4-3

NGSS.HS-PS4-5

What is the role of the optical cavity in a laser?

• To absorb excess light

• To reflect light back and forth to amplify it

• To cool down the laser

• To change the color of the light

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NGSS.HS-PS4-3

NGSS.HS-PS4-5

Which of the following materials can be used as a gain medium in a laser?

• Glass

• Water

• Ruby

• Plastic

Tags

NGSS.HS-PS4-3