EASY
9th CBSE
IMPORTANT
Earn 100

What are reverberations? How can reverberations be minimised in auditorium/hall?

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 4>Q 4
Name some simple devices based on multiple reflection of sound.
EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 4>Q 5
What are audible waves?
EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 4>Q 5
What is audible range of waves?
EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 4>Q 5
What are infrasonic waves?
EASY
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 4>Q 5
What are ultrasonic waves?
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 4>Q 5
What is ultrasound? Mention some of its technical applications.
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 4>Q 6
Why is ultrasound so useful? Describe two major applications of ultrasound.
MEDIUM
9th CBSE
IMPORTANT
Physics>Chapter 6 - Sound>CLASS ASSIGNMENT 4>Q 7
What is SONAR? What are the applications of this technique?