Amisha Singh Solutions for Chapter: Sound, Exercise 2: Exercise
Amisha Singh Physics Solutions for Exercise - Amisha Singh Solutions for Chapter: Sound, Exercise 2: Exercise
Attempt the practice questions on Chapter 5: Sound, Exercise 2: Exercise with hints and solutions to strengthen your understanding. Physics For Class 9 solutions are prepared by Experienced Embibe Experts.
Questions from Amisha Singh Solutions for Chapter: Sound, Exercise 2: Exercise with Hints & Solutions
Name any two objects which are good reflectors of sound.
State the laws of reflection of sound.
What is echo? How is echo formed?
What is the minimum distance in air required from a sound reflecting to hear an echo (at ).
A man standing away from a cliff (steep rock) fires a gun. After how long will he hear its echo? (Take speed of sound ).
Define the following terms:
(a) Echolocation
(b) Echocardiography, and
(c) Ultrasonography.
Name an animal which navigates and find food by echolocation.
Which of the two produces ultrasonic waves: porpoise or whale?
