Consider two beams of light, which are shining onto perfectly absorbent black barrels. The amplitude of Beam 1 is the greater than the amplitude of Beam 2 (A₁ = 2A₂), and the wavelength of Beam 1 is longer than the wavelength of Beam 2 (₁ = 3^₂/2). Is the total energy in Beam 1 greater than, less than, or equal to the total energy in Beam 2? Explain your reasoning. a) b) Is the number of photons in Beam 1 greater than, less than, or equal to the number of photons in Beam 2? First, explain your reasoning qualitatively, then determine the number of photons in Beam 1 if there are 2-10° photons in Beam 2. The electric field from Beam 1 is drawn again on the axes below. On the same axes, draw another beam (Beam 3) that has the same number of photons as Beam 1, but is made of redder light. Pay attention to both the wavelength and the amplitude of the wave. Explain your reasoning. Beam 1 Beam 2
Consider two beams of light, which are shining onto perfectly absorbent black barrels. The amplitude of Beam 1 is the greater than the amplitude of Beam 2 (A₁ = 2A₂), and the wavelength of Beam 1 is longer than the wavelength of Beam 2 (₁ = 3^₂/2). Is the total energy in Beam 1 greater than, less than, or equal to the total energy in Beam 2? Explain your reasoning. a) b) Is the number of photons in Beam 1 greater than, less than, or equal to the number of photons in Beam 2? First, explain your reasoning qualitatively, then determine the number of photons in Beam 1 if there are 2-10° photons in Beam 2. The electric field from Beam 1 is drawn again on the axes below. On the same axes, draw another beam (Beam 3) that has the same number of photons as Beam 1, but is made of redder light. Pay attention to both the wavelength and the amplitude of the wave. Explain your reasoning. Beam 1 Beam 2
Chapter10: Atomic Physics
Section: Chapter Questions
Problem 1C
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