Practice Microwaves - 8.4.2 | 8. ELECTROMAGNETIC WAVES | CBSE 12 Physics Part 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What are microwaves?

πŸ’‘ Hint: Think about their range in frequency compared to radio waves.

Question 2

Easy

Name one application of microwaves.

πŸ’‘ Hint: Think about common kitchen appliances.

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 frequency range do microwaves typically occupy?

  • 0.1 Hz - 30 kHz
  • 30 kHz - 300 GHz
  • 300 GHz - 1 THz

πŸ’‘ Hint: Review the frequency range of electromagnetic waves.

Question 2

True or False: Microwaves are effective because they can heat food unevenly.

  • True
  • False

πŸ’‘ Hint: Think about how food is cooked in a microwave oven.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A microwave oven operates at a frequency of 2.45 GHz. Calculate the wavelength of the microwaves produced.

πŸ’‘ Hint: Remember to convert frequency into hertz when using \\( c = f \\times \\lambda \\).

Question 2

Microwaves are used in dual-frequency radar for measuring speed. Discuss how the different speeds of microwaves would impact the accuracy of measurements.

πŸ’‘ Hint: Consider the importance of wave patterns and their interaction with moving objects.

Challenge and get performance evaluation