The red line in the helium spectrum is closer to orange than the red line in the hydrogen spectrum,indicating that it has a higher frequency.Therefore,the photons of red light emitted by helium have __________ energy than those emitted by hydrogen.
A)lower
B)higher
C)the same
D)more ionization

Question

Quizplus · Accepted Answer

The energy of a photon is directly proportional to its frequency. Since the red line in the helium spectrum has a higher frequency than the red line in the hydrogen spectrum, it means that the photons of red light emitted by helium have higher energy than those emitted by hydrogen. Thus, the correct choice is B, which means higher energy.

The Red Line in the Helium Spectrum Is Closer to Orange