ASSESS YOURSELF
R P Manchanda Science Solutions for Exercise - ASSESS YOURSELF
Simple step-by-step solutions to ASSESS YOURSELF questions of Sound from Together with Science Class 9. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from ASSESS YOURSELF with Hints & Solutions
When sound is reflected from a distant object, an echo is produced and heard in a winter night. Now, if the distance between the reflecting surface and the source of sound production remains the same, will you hear the echo of the same sound on a summer day? Explain.
How are ultrasonic waves used for direction signalling?
Draw a diagram to represent a sound wave.
How does sound produced by a source reach our ears?
Explain how sound travels in the form of density variations in a medium.
What is an echo?
How is an echo different from a reverberation?
Describe an activity to demonstrate that sound follows the same laws of reflection as light.
