Speed of sound in Helium in m/s is:
346
1284
317
965
The sound which is produced due to a mixture of several frequencies is referred to as:
Tone
Note
Timber
Music
The acronym SONAR stands for:
Satellite Navigation And Ranging
System Navigation And Ranging
Sound Navigation And Ranging
Light Navigation and Ranging.
A sound wave has frequency 2 kHz and the wavelength 35 cm. How long will it take to travel 1.5 km?
3 s
3.1 s
2.5 s
2.1 s
Which of these is an instrument which uses ultrasonic waves getting images of internal organs?
ECG
X ray plate
Ultra sounds Scanner
ECC
A sitar player plucks the wire of a sitar.After a short time each part of the wire starts vibrating in a direction perpendicular to the wire.Is the propogation of this disturbance a longitudinal or a transverse wave ?
Longitudinal
Transverse
Stationary
Both longitudinal and transverse
In the inner ear, the pressure variations are turned into electrical signals by:
Cochlea
Anvil
Eustatian tubule
Oval window
Sound propagates through
Solid
Liquid
Gas
All the above
Speed of sound in methanol in ms-1 is:
1207
1103
1498
1531
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
