• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar

Class Notes

  • Class 1-5
  • Class 6
  • Class 7
  • Class 8
  • Class 9
  • Class 10
  • Class 11
  • Class 12
  • NCERT Solutions
  • About Us
    • Contact Us

Sound

Reverberation

Last Updated on September 18, 2022 By Mrs Shilpi Nagpal

Question 1 Define the term reverberation? Question 2 What is a megaphone. Name the principle on which a megaphone work? Question 3 What is a stethoscope. Name the principle on which a stethoscope work? Question 4 What is a soundboard. Name the principle on which a soundboard work? Question 5 Why are the ceiling of concert halls made curved? Question 6 How can we … [Read more...] about Reverberation

Reflection of sound

Last Updated on September 18, 2022 By Mrs Shilpi Nagpal

Question 1 What is meant by reflection of sound? Question 2 What type of surfaces are best for reflecting sound? Question 3 State the laws of reflection? Question 4 Define the term echo? Question 5 Why  an echo is heard sooner on a hot day? Reflection of Sound Sound can also be made to change its direction and bounce back when it falls on a hard surface. The … [Read more...] about Reflection of sound

Human ear

Last Updated on September 18, 2022 By Mrs Shilpi Nagpal

human ear

Question 1 Name that part of ear which vibrates when outside sound falls on it? Question 2 Name the tiny bones present in middle part of ear? Question 3 What is the function of tiny bones in the middle ear? Question 4 Name the tube which connects the middle ear to throat? Question 5 Explain the working of ear? Question 6 Name the nerve which carries electrical … [Read more...] about Human ear

Sound

Last Updated on September 18, 2022 By Mrs Shilpi Nagpal

Question 1 Define sound? Question 2 What type of wave are sound wave in air? Question 3 Name two types of sound waves which are generated in a long spring? Question 4 What are mechanical waves? Question 5 Explain the term compression? Question 6 Explain the term rarefaction? Sound Sound is a form of energy .It is that form of energy which makes us hear. … [Read more...] about Sound

Sonar

Last Updated on September 18, 2022 By Mrs Shilpi Nagpal

Question 1 Write the full form of SONAR? Question 2 What is a SONAR? Question 3 What is the use of sonar? Question 4 A sonar picks up a return signal after 3 sec.How far away is the object? Question 5 What is eco-ranging? Question 6 What is echolocation? Question 7  How is the bat able to fly at night without colliding with objects? Question 17 Explain how … [Read more...] about Sonar

  • Go to page 1
  • Go to page 2
  • Go to Next Page »

Primary Sidebar

  • Facebook
  • Pinterest
  • Twitter
  • YouTube

Recent Posts

  • Clauses
  • Collocations
  • The Treasure Within, Class 8 English, Chapter 4 Notes
  • The Selfish Giant, Class 8 English, Chapter 3 Notes
  • Children at Work, Class 8 English, Chapter 2 Notes

© 2016 - 2023 · Disclaimer · Privacy Policy