Chapter 20 The Energy of Waves

What is the energy of light whose wavelength is 4.06 x 10^-11 m?

• 4.89988x10^-14

• 4.89988x10^-13

• 4.89988x10^-12

• 4.89988x10^-15

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NGSS.HS-PS4-1

Calculate the energy of a photon of radiation with a wavelength of 6.4 x 10^-7 m.

• 5.9 x 10^-17 Joules

• 4.4 x 10^-19 Joules

• 3.1 x 10^-19 Joules

• 7.3 x 10^-19 Joules

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NGSS.HS-PS4-1

Calculate the energy of a gamma ray photon whose frequency is 5.02 x 10²⁰ Hz?

• 3.3x10^-13 Joules

• 4.2x10^-19 Joules

• 3.0x10^-19 Joules

• 7.2x10^-19 Joules

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NGSS.HS-PS4-1

Calculate the energy of a photon of radiation with a frequency of 8.5 x 10¹⁴ Hz.

• 1.2x10^-19 Joules

• 7.2x10^-19 Joules

• 4.0x10^-19 Joules

• 5.610^-19 Joules

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What is the frequency of UV light that has an energy of 2.39 × 10 ^-18 J? 

• 2.32 x 10⁹ Hz
• 3.60 x 10¹⁵ Hz
• 1.58 x 10^-51 Hz
• 3 x 10⁸  m/s

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NGSS.HS-PS4-1

Find the energy, in joules per photon, of microwave radiation with a frequency of 7.91 × 10 ¹⁰ Hz.

• 6.63 x 10^-34 J

• 5.25 x 10¹⁴ J

• 5.24 x 10^-23 J

• 1.19 x 10⁴⁴ J

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NGSS.HS-PS4-1

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What is the energy of an X-ray with a frequency of 1.0 x 10¹⁷ Hz?

• 6.63 x 10^-34 J
• 6.63 x 10^-17 J
• 1.51 x 10¹⁶ J
• 1.51 x 10^-16 J

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NGSS.HS-PS4-1

What is the typical units of measurement for the "E" in the following equation: 
E_photon= h x f

• joules
• meters
• meters/seconds
• hertz

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NGSS.HS-PS4-1

NGSS.HS-PS4-3

The equation that shows the relationship between the energy of light and frequency is: 

• c= λ⋅f
• E=h⋅f

Light has characteristics of both a wave and a ____________.

• amplitude
• freqency
• joule
• photon

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NGSS.HS-PS4-3