Practice Observation - 6.3 | Chapter 7: Dual Nature of Matter and Radiation | ICSE Class 12 Physics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the photoelectric effect?

💡 Hint: Look for how light interacts with electrons.

Question 2

Easy

What happens if the frequency of light is below the threshold frequency?

💡 Hint: Consider how frequency relates to electron emission.

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 is required for an electron to be emitted due to the photoelectric effect?

  • High intensity light
  • Low frequency light
  • Light of suitable frequency

💡 Hint: Consider the importance of frequency over intensity.

Question 2

True or False: The mass of electrons is associated with their wave properties in the de Broglie hypothesis.

  • True
  • False

💡 Hint: Think about how matter is described in wave terms.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Calculate the maximum kinetic energy of an electron emitted when light of frequency 6.0 x 10^14 Hz shines on a metal with a work function of 2.0 eV.

💡 Hint: Be cautious about unit conversions when substituting values.

Question 2

Describe how a linear graph of stopping potential vs. frequency supports the photoelectric effect theory.

💡 Hint: Consider the relationship between slope and physical constants.

Challenge and get performance evaluation