If The Frequency Doubles, The Photon Energy Will ______.

If The Frequency Doubles, The Photon Energy Will ______.

• A. Increase Proportionally
• B. Decrease Proportionally
• C. Remain Constant
• D. Double Exponentially

Answer: (A)

Photon energy scales directly with frequency via E = h f. Since h is a constant, doubling the frequency doubles the energy. So the energy increases proportionally with frequency. The other options would imply no change, inverse dependence, or a faster-than-linear rise, which aren’t consistent with E = h f.

Photon energy scales directly with frequency via E = h f. Since h is a constant, doubling the frequency doubles the energy. So the energy increases proportionally with frequency. The other options would imply no change, inverse dependence, or a faster-than-linear rise, which aren’t consistent with E = h f.