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A 200-W infrared laser emits photons with a wavelength of 1.05 multiply.gif 10-6 m, and a 200-W ultraviolet light emits photons with a wavelength of 3.51 multiply.gif 10-7 m.

(a) What is the energy of a single infrared photon?

J

(b) What is the energy of a single ultraviolet photon?

J

(c) How many infrared photons are emitted per second?

photons/s

(d) How many ultraviolet photons are emitted per second?

photons/s

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