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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What did Heinrich Hertz observe?
💡 Hint: Think about the type of light and the material involved.
Question 2
Easy
Who studied the photoelectric effect after Hertz?
💡 Hint: His contributions followed Hertz's foundational work.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What phenomenon was first observed by Heinrich Hertz?
- Emission of light
- Emission of electrons
- Deflection of electrons
💡 Hint: Consider what occurs when light strikes a material.
Question 2
True or False: The intensity of light affects the energy of emitted electrons.
- True
- False
💡 Hint: Remember the key findings of Lenard.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a metal with a work function of 3.1 eV. Calculate the minimum frequency of light required to cause the photoelectric effect. What happens if the frequency is less than this value?
💡 Hint: Refer to how work function relates to frequency.
Question 2
A photon of light hits a metal and ejects an electron with a kinetic energy of 2 eV. If the work function is 2.5 eV, what was the frequency of the light that struck the metal?
💡 Hint: Add kinetic energy and work function before applying Planck's constant.
Challenge and get performance evaluation