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
Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table.
The pitch of a stringed instrument is increased by .................. tension in string.
In a piano, pitch is decreased by
The frequencies of notes given by flute, guitar and trumpet are respectively 400 Hz, 200 Hz and 500 Hz. Which one of these has the highest pitch?
Explain the following and illustrate your answer by drawing appropriate diagram:
Loudness
Name the factors which determine the quality of a note.
How can one distinguish the sounds of two musical instruments even if they are of the same pitch and same loudness?
The frequency of the stretched string of a fixed length is f when it is plucked in the middle. Where should it be plucked so that string vibrates with frequency (i) 2f, (ii) 3f?
Draw diagrams to show these vibrations and name them.
Give a scientific reason.
We can hear the movement of a mosquito’s wings but we cannot hear the movement of our hands.
______ is a general term for the distinguishable characteristic of a wave.
