Worksheet: Converting between Energy and Frequency

In this worksheet, we will practice using the Planck constant to convert between energies and frequencies of electromagnetic waves.

Q1:

The atomic emission spectrum of cesium contains lines at frequencies of Hz and Hz. Calculate the difference in energy between these two lines.

Q2:

The combined energy of two photons is equal to that of one photon with a wavelength of 381 nm. The frequency of one photon is 360 THz. What is the energy of the second photon?

A J

B J

C J

D J

E J

Q3:

A microwave oven emits photons with a frequency of Hz. Calculate the energy of one emitted photon.

A J

B J

C J

D J

E J

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