Sounds Waves And Motion - Study Mode
[#191] The depth of the trough of a wave is called its-
Correct Answer
(D) Amplitude
[#192] What are the roofs and walls of the auditorium covered to reduce echo?
Correct Answer
(B) fiberboard
[#193] What is the frequency of ultrasonic waves?
Correct Answer
(C) More than 20 kHertz
[#194] To hear distinct echo the time interval between the original sound and the reflected sound must be-
Correct Answer
(B) 0. 1 second
[#195] The maximum distance of the particle from the fixed point or mean position is called
Correct Answer
(A) amplitude