Modern Physics

$K_{\text{max}} = hf + \phi$

$K_{\text{max}} = hf - \phi$

$K_{\text{max}} = \phi - hf$

$K_{\text{max}} = f - h\phi$

$\approx 5.8 \times 10^{14} \text{ Hz}$

$\approx 9.6 \times 10^{14} \text{ Hz}$

$\approx 3.6 \times 10^{14} \text{ Hz}$

$\approx 1.0 \times 10^{15} \text{ Hz}$

Material A

Material B

Both materials will emit electrons with the same maximum kinetic energy.

Neither material will emit electrons.

Wood

Sodium

Plastic

Glass

The maximum frequency of light that can eject electrons from a material.

The minimum frequency of light required to eject electrons from a material.

The frequency of light at which the kinetic energy of emitted electrons is maximized.

The frequency of light that causes the highest intensity of electron emission.

The maximum energy an electron can have when emitted from the material.

The minimum energy required to remove an electron from the material's surface.

The energy of the incident photon.

The kinetic energy of the emitted electrons.

The number of emitted electrons increases with the intensity of light.

Electrons are only emitted if the frequency of light is above a certain threshold.

The emitted electrons have a range of kinetic energies.

Light can be diffracted.

Yes, electrons will be emitted.

No, electrons will not be emitted.

Electrons will be emitted only if the intensity of light is high enough.

The number of emitted electrons depends on the voltage applied.

The energy of the photons is too low to overcome the work function of the material.

The intensity of the light is not high enough to cause electron emission.

The wavelength of the light is too short.

The electrons do not absorb the light.

0.89 eV

2.89 eV

4.89 eV

6.89 eV