Section: Science

153) View Additional Information

Based on Table 1, which of the following statements best explains the results of Trials 1–3?

1. The light was too intense to eject electrons from the metal in the photocell.
2. The light was too intense to eject photons from the metal in the photocell.
3. The energy per electron was too high to eject photons from the metal in the photocell.
4. The energy per photon was too low to eject electrons from the metal in the photocell.

The results in Table 1 show that the energy per electron was too low to eject photons from the metal in the photocell. This can be seen by noting that Trials 1–3 used electrons with a lower energy per photon (2.0 eV) than did Trials 4–6 (4.0 eV) and Trials 7–9 (6.0 eV). In Trials 4–9, electrons were ejected.