MEDIUM
9th CBSE
IMPORTANT
Earn 100

Define the term echolocation.

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Long Answer Type Questions>Q 66
Define the term echocardiography.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Long Answer Type Questions>Q 66
Define the term ultrasonography.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Long Answer Type Questions>Q 66
Name an animal which navigates and finds food by echolocation.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Long Answer Type Questions>Q 66
Which of the two produces ultrasonic waves: porpoise or whale?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Long Answer Type Questions>Q 67
What is sonar? Explain its use.
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Long Answer Type Questions>Q 67
A sonar station picks up a return signal after 3 seconds of sending it. How far away is the object? (Speed of sound in water =1440 m/s).
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Long Answer Type Questions>Q 68
Draw a neat and labelled diagram of the human ear. With the help of this diagram, explain the construction and working of the human ear.
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Multiple Choice Questions (MCQs)>Q 69
In SONAR we use: