Question

(a) Calculate the wavelength of light in vacuum that has a frequency of 5.14 ✕ 1018...

(a) Calculate the wavelength of light in vacuum that has a frequency of 5.14 ✕ 1018 Hz.
nm

(b) What is its wavelength in crown glass?
nm

(c) Calculate the energy of one photon of such light in vacuum. Express the answer in electron volts.
eV

(d) Does the energy of the photon change when it enters the crown glass?

The energy of the photon does not change.

The energy of the photon changes.

Explain why?

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