Which of the Following Particles Has the Longest Wavelength

question 113

Multiple Choice

Which of the following particles has the longest wavelength?

• A) a photon with a frequency of 3 × 10¹⁹ Hz
• B) a photon with an energy of 2 × 10^-13 J
• C) an electron with a momentum of 6.6 × 10^-21 kg · m/s
• D) a proton with a momentum of 6.6 × 10^-21 kg · m/s
• E) All four have the same wavelength.

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