Practice Einstein’s Photoelectric Equation: Energy Quantum Of Radiation (11.6)

Practice: EINSTEIN’S PHOTOELECTRIC EQUATION: ENERGY QUANTUM OF RADIATION

Lesson 11.6DUAL NATURE OF RADIATION AND MATTER

Practise this section

9 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the definition of the photoelectric effect?
Show hintHide hint
Think about how light interacts with metals.
Question 2.
Who proposed the photon theory explaining the photoelectric effect?
Show hintHide hint
This physicist was awarded a Nobel Prize for this work.
3Question 3.
What is the relationship between light intensity and the energy of emitted photoelectrons?
- Intensity increases energy
- Intensity has no impact on energy
- Higher intensity reduces energy
Show hintHide hint
Think about how energy is defined in the context of photons.
4Question 4.
Is the stopping potential dependent on the frequency of the incident light?
- True
- False
Show hintHide hint
Recall the relationship defined in Einstein's equation.
Question 5.
A metal's work function is 3.1 eV. What frequency of light is required to cause photoemission?
Show hintHide hint
High frequency light often means ultraviolet or visible spectrum for metals.
Question 6.
Explain why the photoelectric effect cannot be explained by classical wave theory.
Show hintHide hint
Consider the concept of quantization introduced by Einstein.

5 more questions in this section. Enroll free to practise them all.