$($d$)$ Again, consider how the number of emitted electrons, $N,$ depends on the wavelength of light.

Assume that the number of photons striking the surface is constant and the condition for electron

emission in part $($a$)$ is satisfied. The number of emitted electrons is:

proportional to the light wavelength: Nprop$.$

proportional to the light wavelength squared: Nprop${}^2.$

inversely proportional to the light wavelength: Nprop$\frac{1}{}.$

inversely proportional to the light wavelength squared: Nprop$\frac{1}{{}^2}.$

independent of the light wavelength.

$($e$)$ The kinetic energy of the emitted photoelectrons depends on:

the light wavelength

the intensity of light

both the intensity and the wavelength of light

neither wavelength nor intensity