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The Particle Nature of Light

Q. The energy of a particular color of blue light is 4.21x10^-22 kJ/photon. The wavelength of this light is _____ nanometers.

Solved • Feb 20, 2020

The Particle Nature of Light

Q. A local FM radio station broadcasts at an energy of 6.57x10^-29 kJ/photon. Calculate the frequency at which it is broadcasting.

Solved • Feb 20, 2020

The Particle Nature of Light

Q. How much energy is contained in 1 mol of each of the following? γ-ray photons with a wavelength of 2.62x10^-5 nm. Express the energy numerically in kilojoules per mole.

Solved • Feb 8, 2020

The Particle Nature of Light

Q. How much energy is contained in 1 mol of each of the following? X-ray photons with a wavelength of 0.135 nm. Express the energy numerically in kilojoules per mole.

Solved • Feb 8, 2020

The Particle Nature of Light

Q. A heat lamp produces 20.5 watts of power at a wavelength of 5.5 μm. How many photons are emitted per second? (1 W = 1 J/s.) Express your answer to three significant figures.

Solved • Feb 8, 2020

The Particle Nature of Light

Q. Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies. 835.8 MHz (common frequency used for cell phone communication) Express your answer in joules using four significant figures.

Solved • Feb 8, 2020

The Particle Nature of Light

Q. Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies. 104.9 MHz (typical frequency for FM radio broadcasting) Express your answer in joules using four significant figures.

Solved • Feb 8, 2020