The pleasing sounds are called
Music.
Noise.
loudness.
None of these.
The eardrum is like
Stretched rubber sheet.
Stretched string.
Air column.
The frequency determines the
shrillness of a sound.
loudness of a sound.
clarity of a sound.
none of these.
The frequency of a source is 20 kHz. The frequencies of sound wave produced by it in water and air will be
Same as that of source = 20 kHz
> 20 kHz
< 20 kHz
Depends upon velocity
Loudness of sound is directly proportional to the
Amplitude of wave
Distance from the source of sound
Frequency of the wave
Wavelength of the wave
The number of oscillations per second is called
Frequency.
Amplitude.
Phase.
Sound can be produced by use of which of the following objects?
Expanding objects
Opaque objects
Hot objects
Vibrating objects
The to and fro motion of an object is termed as :
vibration.
oscillation.
Modulation.
feedback
To and fro motion of a particle about its mean position is called
Frequency
Amplitude
Wavelength
Vibration
Unwanted sounds are called
Loudness.
