Advertisements
Advertisements
Question
Give a scientific reason.
The sounds generated by a tabla and a sitar are different.
Advertisements
Solution
Due to differences in the pitch and timber, the sound produced by a tabla and a sitar is different.
When fingers or palms thump the leather surface in a tabla with leather fitted, sound is produced.
Thus, the waves produced two-dimensional travel.
The sitar's strings are fastened to a pumpkin-shaped box known as a sound box.
The pitch and frequencies produced by a sitar and a tabla are different, hence they produce different sounds.
RELATED QUESTIONS
A person is standing at the seashore. An observer on the ship which is anchored in between a vertical cliff and the person on the shore fires a gun. The person on the shore hears two sounds, 2 seconds and 3 seconds after seeing the smoke of the fired gun. If the speed of sound in the air is 320 ms-1 then calculate:
1) the distance between the observer on the ship and the person on the shore.
2) the distance between the cliff and the observer on the ship.

The distance from one compression to nearest rarefaction is called wavelength.
The pitch of sound depends on frequency.
Decibel is the unit of pitch of a sound.
How is loudness related to the amplitude of wave?
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
Two waves of the same pitch have amplitudes in the ratio 1 : 3 What will be the ratio of their
- loudness,
- pitch?
What is meant by the ‘pitch’ of a note? Does it depend on the loudness or ‘quality’ of the ‘note’? How is pitch ‘related’ with frequency?
A 0.6 m long stretched wire is made to vibrate in two different modes as shown in figure
(a)

(b)

(i) If the frequency of the note produced in (b) is n, what is the frequency in case (a)?
(ii) In which case (a) or (b), is the note louder? Give reasons.
(iii) In which case is the pitch higher? Give reason.
