Question
How fast must a $56.5-g$ tennis ball travel to have a de Broglie wavelength equal to that of a photon of green light ( $5400 \mathrm{~A}$ )?
Step 1
First, we need to find the energy of the green light photon. We can use the formula E = hf, where E is the energy, h is the Planck's constant (6.63 x 10^-34 Js), and f is the frequency of the light. Show more…
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