Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
The pitch of a note is determined solely by its frequency. The pitch, in fact, is a subjective sensation in the ear depending only upon the frequency of the musical sound and is quite independent of its loudness or quality. Pitch is thus a subjective phenomenon and cannot be physically measured. However, the relation between pitch and frequency is linear to a very close approximation. Hence the pitch is usually taken to be synonymous with frequency. Generally, notes of high frequency or pitch are shrill and sharp whereas those of low frequency or pitch are flat and dull.
संबंधित प्रश्न
Shrillness of a sound is determined by the ______ of vibration.
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
In a longitudinal wave, compression and rarefaction are formed.
Match the following
| column A | column B |
| (A) Amplitude | (1) frequency |
| (B) Frequency | (2) amplitude |
| (C) Loudness | (3)maximum displacement on either side |
| (D) Pitch | (4) presence of other frequencies |
| (E) Waveform | (5) 1/ time period |
Name three characteristics of a musical sound.
Two identical guitars are played by two persons to give notes of the same pitch. Will they differ in quality? Give a reason for your answer.
The same musical note when played on a piano and when played on a flute sounds different.
How is it possible to detect the filling of a pitcher under a tap by hearing its sound at a distance?
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.
