Light Waves Amplify

Can travel through matter (gas, liquid, solid) and empty space. 

• sound

• light

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

• Stimulated emission

• Spontaneous emission

• Absorption

• Reflection

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

• Resonant cavity

• Optical lens

• Prism

• Diffraction grating

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

• More electrons in a higher energy state than a lower one

• Equal number of electrons in all energy states

• More electrons in a lower energy state than a higher one

• No electrons in any energy state

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

• Laser cutting

• Radio broadcasting

• Ultrasound imaging

• Magnetic resonance imaging

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What type of light is typically used in fiber optic communications due to its ability to be amplified?

• Infrared light

• Ultraviolet light

• Visible light

• X-rays

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Which process is essential for the amplification of light in an optical fiber amplifier?

• Stimulated emission

• Spontaneous emission

• Absorption

• Scattering

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NGSS.HS-PS4-5

What is the role of a gain medium in a laser?

• To amplify light waves

• To reflect light waves

• To absorb light waves

• To refract light waves

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Which of the following best describes a laser?

• A device that amplifies light waves

• A device that absorbs light waves

• A device that reflects light waves

• A device that scatters light waves

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What is the effect of light wave amplification on the coherence of the light?

• Increases coherence

• Decreases coherence

• No effect on coherence

• Randomizes coherence

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