Advertisements
Advertisements
प्रश्न
The safe limit of loudness of audible sound is
पर्याय
0 to 80 dB
above 80 dB
120 dB
above 120 dB
Advertisements
उत्तर
0 to 80 dB
APPEARS IN
संबंधित प्रश्न
The quality of a sound depends on the amplitude of wave.
If a drum is beaten hard, its loudness ................
In a piano, pitch is decreased by
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of loudness?
It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.
(i) Name the characteristics of sound associated with the above obervation.
(ii) Give a reason for the above observation.
Explain the following and illustrate your answer by drawing appropriate diagram:
Loudness
The diagram below shows three ways in which the string of an instrument can vibrate.
(i) Which of the above diagrams shows the fundamental note?
(ii) Which has the frequency 4 times that of the fundamental?
(iii) State the ratio between the frequency of the first and second.
What is acoustics?
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
