Statement A: Speed of sound is same at different temperature
Statement B: Loudness is measured in decibels.
Which of the two statements is true?
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Frequency of infrasonic waves is ____________ than frequency of ultrasound waves.
“Due to the high power of ultrasound waves. It is used for breaking and cutting objects” The above statement is
The upper limit of frequency of sound waves audible to human beings are
Statement A: Human beings are ultrasound deaf
Statement B: Ultrasonic waves can travel easily in solid, liquid and gases.
Which of the two statements is true?
The maximum displacement of the particle of the mean from its mean position is called the
The distance between a consecutive crest and trough is x. The wavelength of the wave is
An echo is heard when-
A. Minimum distance is 17m
B. Minimum time gap between two sounds is 1/10th of second
C. Minimum distance is 18m
D. Minimum time gap between two sounds is 1/100th of second
Ultra sound is produced by
a. Tortoise
b. Bats
c. Dolphins
d. Dogs
A source produces 20 crests and 20 troughs in 0.2 second. Find the frequency of the wave.
A wave moves a distance of 10m in 0.05 second. Find the wavelength of the wave if frequency is 200Hz?
A bat hears the echo of its squeak after 0.1 second. How far is the obstacle from the bat? Speed of sound is 344 m/s.
Cochlea, semicircular canals and the auditory nerve are associated with
“Wave motion shifts mass from one region to another” The above statement is
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