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Sound

ICSE · Class 10 · Physics

Step-by-step guide to study Sound in ICSE Class 10 Physics. Topics to cover, practice strategy, and time allocation.

42 questions38 flashcards5 concepts

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A comparison chart highlighting the key differences between light waves and sound waves, including their nature (electromagnetic vs. mechanical), medium requirement, wave type (transverse vs. longitud
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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas, and key concepts.

2
Day 3

Practice Problems

Solve textbook exercises and additional practice questions. There are 42 questions available for this chapter.

3
Day 4

Revise & Test

Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding. Mark weak areas for re-revision.

4
Day 7

Spaced Revision

Revisit Sound after a week. Use flashcards for quick recall. Solve previous year questions from this chapter.

What to Focus On

  • Sound waves are mechanical and longitudinal.
  • Audible range of human ear is 20 Hz to 20,000 Hz.
  • Sound above 20,000 Hz is ultrasonic and below 20 Hz is infrasonic.

  • Reflection of sound occurs from rigid surfaces.
  • The reflecting surface should be larger than the wavelength.
  • Echo is heard only when the time gap is at least 0.1 s.

  • Speed of sound can be found using the echo method.
  • Bats, dolphins, and dogs use sound ranging.
  • SONAR uses ultrasonic waves for underwater detection.

Common Mistakes to Avoid

An echo can be heard whenever sound reflects from any nearby wall.

Reverberation and echo mean the same thing.

SONAR and RADAR use the same kind of waves.

Memory Tips

Human audible range

Ultrasonic and infrasonic classification

Sound waves are longitudinal and light waves are transverse

Wave relation v = f × λ

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Frequently Asked Questions

What are the important topics in Sound for ICSE Class 10 Physics?
Sound covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Sound — ICSE Class 10 Physics?
Understand the core concepts first, then work through the 42 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Sound

All 12 chapters — ICSE Class 10 Physics Study Plan

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