Wavelength, frequency, and energy

What is the speed of light?

• 3.0x10⁸ ms

• 3.0x10⁸ m/s

• 6.626x10^-34 Js

• 6.626x10^-34 J/s

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NGSS.HS-PS4-1

The frequency of violet light is 7.5x10¹⁴ Hz. What is its wavelength?

• 4.0x10^-7 m

• 4.0x10⁷ m

• 2.25x10²³m

• 2.25x10²³ Hz

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NGSS.HS-PS4-1

Which wave in the diagram has the greatest wavelength?

• 1
• 2
• 3
• 4

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The number of waves that pass a fixed point in a given amount of time is...

• frequency

• wave speed

• amplitude

• wavelength

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Which letter(s) represent the wavelength?

• A & B

• B & D

• B & F

• C & E

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Violet light has a wavelength of
4.10 x 10^-12  m. What is the frequency?

• 1.23 x 10^ -3 Hz
• 7.31 x 10^ 19 Hz
• 1.37 x 10^12 Hz
• 3.0 x 10^ 8 Hz

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NGSS.HS-PS4-1

_____________________light is the only type of EM wave detected by the human eye.

• Red

• Gamma

• Microwave

• Visible

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If an AM radio station broadcasts at
9.95 x 10⁵ Hz, what is the wavelength of this radiation?

• 6.59 x 10^-28 m
• 1.01 x 10^-6 m
• 3.32 x 10^-3 m
• 302 m

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NGSS.HS-PS4-1

An argon ion laser emits light at 488 nm. What is the frequency of this radiation? (1 nm = 1x10^-9m)

• 4.07 x 10^-19 Hz
• 6.15 x 10¹⁴ Hz
• 1.46 x 10² Hz
• 2.05 x 10⁶ Hz

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NGSS.HS-PS4-1

A common infrared laser operates at 1.06 x 10³ nm. What is the energy of a photon with this wavelength? (1 nm = 1x10^-9m)

• 7.02 x 10^-40 J
• 6.25 x 10^-28 J
• 3.54 x 10^-15 J
• 1.87 x 10^-19 J

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