Practice Effect of frequency of incident radiation on stopping potential - 11.4.3 | 11. DUAL NATURE OF RADIATION AND MATTER | CBSE 12 Physics Part 2
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Typing
Memory
Math
English Adventures
Knowledge

11.4.3 - Effect of frequency of incident radiation on stopping potential

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the definition of stopping potential?

💡 Hint: Think about what it means to 'stop' the electrons.

Question 2

Easy

Define threshold frequency.

💡 Hint: Consider the lowest frequency that can cause 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 the effect of increasing the frequency of incident light on stopping potential?

  • Decreases
  • Increases
  • Remains the same

💡 Hint: Recall the relation between frequency and energy.

Question 2

True or False: The stopping potential is affected by the intensity of light.

  • True
  • False

💡 Hint: Consider what factors influence stopping potential.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A metal has a threshold frequency of 5 x 10^14 Hz. If light of 8 x 10^14 Hz is used with intensity 'I', calculate the stopping potential and discuss how increasing the intensity affects photoelectron emission.

💡 Hint: Remember formulas for energy and consider the definitions of stopping potential.

Question 2

If a metal requires a stopping potential of 2.5 V for light of frequency 6 x 10^14 Hz, determine the work function of this metal.

💡 Hint: Use Planck's constant and the relation between energy, frequency, and stopping potential.

Challenge and get performance evaluation