Photoelectric Effect

Question 1

Photoelectric Effect

Answer 1

Light causes electrons to be ejected from a metal surface.

Question 2

Threshold Frequency

Answer 2

Very bright light would not cause any electrons to be ejected if the frequency of the light was too low.

Question 3

What can light do if certain energy/frequency requirements is met when projected to a metal surface?

Answer 3

It can eject on metal surfaces, which indicates that light can act like particles called PHOTONS. Not just waves.

Question 4

Energy of photon depends on the frequency, what is the equation for energy of a photon?

Answer 4

E = hv

Question 5

What is Planck’s constant (h)?

Answer 5

6.63 x 10^-34 J*s

Question 6

What equation is created when [c = Λ * v] and [E = hv] is combined?

Answer 6

E = h * c / Λ

Question 7

Line Spectra

Answer 7

When solids, liquids, or condensed gases are heated sufficiently, they radiate energy as light and have a range of energies.