Sounds Waves And Motion - Study Mode
[#91] What is the standard unit for measuring the frequency of a sound wave?
Correct Answer
(B) Hertz
[#92] Oscillatory motion is that motion
Correct Answer
(A) in which a body moves to and fro
[#93] What is called the sound wave above than frequencies of 30,000 Hz?
Correct Answer
(A) ultrasound
[#94] The bats can fly in the dark because they
Correct Answer
(D) generate ultrasonic sound waves
[#95] Which one of the following phenomena cannot be exhibited by sound waves?
Correct Answer
(D) Polarisation