Physics Class 10 Chapter 20: Electromagnetic Waves
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Chapter summary
Chapter 20 of Physics for Class 10 is called "Electromagnetic Waves". It covers 5 learning outcomes of the Federal Board syllabus. You will learn to: state the main regions of the electromagnetic spectrum in order of frequency and in order; state that the speed of all electromagnetic waves in: (a) a vacuum is 3.0 x 108 m/s (b) air. Parhayi.com has 145 MCQs, 33 short questions and 12 long questions for this chapter.
Topics in this chapter
- State the main regions of the electromagnetic spectrum in order of frequency and in order…
- State that the speed of all electromagnetic waves in: (a) a vacuum is 3.0 x 108 m/s (b) air…
- Explain qualitatively, how scattering of light by molecules in the air give the sky its…
- State that theoretically light can also be considered to be made of massless particles that…
- Mixed topics
Sample questions
Try these questions from the chapter. The answers are for Premium students.
- Give an example of energy carried by an electromagnetic wave. (3 marks)
- Explain the reason why clouds appear white in colour. (3 marks)
- What is the electromagnetic spectrum? Give its order based on frequency of radiation. (3 marks)
What Premium gives you in this chapter
- 145 MCQs with answers and explanations
- 33 short questions with full answers
- 12 long questions with answers
- 8 Learn cards
- 21 Activities and games
- chapter tests that show your weak topics
Physics explains how the world works, from motion and forces to heat, light and magnets. Learn each idea in simple steps, check the units, and practise numericals every day.
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