Chapter 13 - Quantum Physics

Question 1

State the equation for the energy of a photon.

Answer 1

Question 2

What is the work done on a single electron?

Answer 2

Question 3

State the equation for threshold potential difference of an electron.

Answer 3

Question 4

Describe the photoelectric effect.

Answer 4

Question 5

What are the three key observations from the photoelectric effect?

Answer 5

Question 6

How many photons can an electron accumulate?

Answer 6

An electron can only accumulate the energy from a single photon. This is called a one-to-one interaction.

Question 7

Explain the first observation (threshold frequency) of the photoelectric effect.

Answer 7

Question 8

Explain the second observation (instantaneous emission) of the photoelectric effect.

Answer 8

Question 9

Explain the third observation (more electrons vs more KE of electrons) of the photoelectric effect.

Answer 9

Question 10

State Einstein’s photoelectric effect equation.

Answer 10

Question 11

Define the wave-particle duality.

Answer 11

Question 12

State the de Broglie equation.

Answer 12