Question

1a. Microwave ovens emit microwave energy with a wavelength of 12.2 cm. What is the energy of exactly one photon of this microwave radiation?

Answer: E = ______ J

1b. The frequency of the middle E note on a piano is 329.63 Hz. What is the wavelength of this note in centimeters? The speed of sound in air is 343.06 m/s.

Answer: ?= _______ cm

1c. A certain shade of blue has a frequency of 7.29 × 1014 Hz. What is the energy of exactly one photon of this light?

Answer: E = ________ J

1d. How many photons are produced in a laser pulse of 0.248 J at 511 nm?

Answer: Protons = ________

1e. Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from ?=5 to ?=1.

Answer: Energy Emitted = ___________ J

Answer 1

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