Noise is measured in
Decibel
The volume or intensity of sound is measured in a unit called decibel (dB)
Which one among the following components is used as an amplifying device?
Which phenomenon is responsible for the echo of sound wave?
Quality of a musical note depends on
How long will a sound wave take to travel 1.5km, which has a frequency of 5 kHz and wavelength of 6 cm?
The propagation of sound waves in a gas involves
Which one among the following components is used as an amplifying device?
Which phenomenon is responsible for the echo of sound wave?
We hear an echo due to
Quality of a musical note depends on