Lesson Worksheet: Converting between Wavelength and Frequency Chemistry

In this worksheet, we will practice using the speed of light to convert between wavelengths and frequencies of electromagnetic waves.

Q1:

A uranium-237 nucleus decays, emitting a gamma ray with a wavelength of 5.96 pm. What is the frequency of the gamma ray?

  • A4.02×10 Hz
  • B1.68×10 Hz
  • C9.19×10 Hz
  • D5.03×10 Hz
  • E8.76×10 Hz

Q2:

Microwave ovens use electromagnetic radiation with a frequency of 2.45 GHz to provide heat. What is the wavelength of this radiation?

Q3:

Chlorophyll strongly absorbs light with a wavelength 680 nm. What is the frequency of this light?

Q4:

Microwave ovens use electromagnetic radiation with a frequency of 2.45 GHz to provide heat. What is the energy per photon of this radiation?

  • A6.48×10 J
  • B1.62×10 J
  • C3.24×10 J
  • D1.62×10 J
  • E1.62×10 J

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