An object moving at a speed greater than that of sound is said to be moving at :
ultrasonic speed
sonic speed
infrasonic speed
supersonic speed
Rhinoceroses communicate using this range of sound:
Ultrasonic
Supersonic
Infrasonic
None of these.
Speed of sound in methanol in ms-1 is:
1207
1103
1498
1531
The vibration made by the eardrum is amplified several times by ,
The hammer
The anvil
The stirrup
all the above
In the inner ear, the pressure variations are turned into electrical signals by:
Cochlea
Anvil
Eustatian tubule
Oval window
The acronym SONAR stands for:
Satellite Navigation And Ranging
System Navigation And Ranging
Sound Navigation And Ranging
Light Navigation and Ranging.
A ship sends out ultrasound that returns from the seabed and is detected after 3.425s. It the speed of ultra sound through sea water is 1531 m.s -1, what is the distance of the seabed from the ship?
5236 m
2618 m
4236 m
1618 m
At the end of the auditory canal there is a thin membrane called:
Tympanic membrane
Stirrup
A wave source produces 20 crests and 20 troughs in 0.2 seconds.Find the frequency of the wave.
200 Hz
500 Hz
100 Hz
300 Hz
When the speed of any object exceeds the speed of sound it is said to be traveling at :
Hypersonic speed.
Supersonic speed.
Ultrasonic speed.
Distinguishable speed.
