Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
Loudness of a sound (L) and its intensity (I) are related as:
L = k log (I/Io),
Here, I/Io is the intensity level of the sound or the ratio between its intensity I and the threshold intensity Io, and k is the constant of proportionality depending upon the unit chosen.
APPEARS IN
संबंधित प्रश्न
An enemy plane is at a distance of 300 km from a radar. In how much time the radar will be able to detect the plane? Take velocity of radio waves as 3 x 108 ms-1
How is loudness related to the amplitude of wave?
State three factors on which loudness of sound heard by a listener depends.
State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of loudness?
What determines the pitch of a sound?
Explain the following and illustrate your answer by drawing appropriate diagram:
Quality of a musical note.
Name the subjective property of light related to its wavelength.
How does frequency affect a musical sound?
