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Sound and Communication

NIOS · Class 10 · Science & Tech

Step-by-step guide to study Sound and Communication in NIOS Class 10 Science & Tech. Topics to cover, practice strategy, and time allocation.

43 questions42 flashcards5 concepts

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An illustration of an experiment demonstrating that sound is produced by vibrations, using a bent metallic hanger (bow) and a stretched elastic string. Shows the string vibrating when plucked and a sm
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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 43 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 and Communication after a week. Use flashcards for quick recall. Solve previous year questions from this chapter.

What to Focus On

  • Sound is produced by vibration.
  • Sound is a mechanical wave.
  • A medium is needed for sound to travel.

  • Mechanical waves need a medium.
  • Electromagnetic waves do not need a medium.
  • Mechanical waves can be transverse or longitudinal.

  • Human hearing range is 16 Hz to 20,000 Hz.
  • Below 16 Hz are infrasonic waves.
  • Above 20 kHz are ultrasonic waves.

Common Mistakes to Avoid

Sound can travel in vacuum if it is strong enough.

Transverse waves are the type of sound wave that travel in air and liquid.

Electromagnetic waves and sound waves behave the same way because both are waves.

Memory Tips

Sound is a result of vibration

Sound needs a medium to travel

Electromagnetic waves need no medium

Human audible range is 16 Hz to 20,000 Hz

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Frequently Asked Questions

What are the important topics in Sound and Communication for NIOS Class 10 Science & Tech?
Key topics in Sound and Communication include Sound and Communication Concept Overview, Overview of different types of communication methods and technologies, Process of sound production and perception from vibration to hearing. These are the concepts NIOS Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Sound and Communication — NIOS Class 10 Science & Tech?
Understand the core concepts first, then work through the 43 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.

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