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प्रश्न
Name the unit in which the loudness of sound is expressed.
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उत्तर
Unit of the loudness of sound is expressed in decibel(dB)
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संबंधित प्रश्न
State two conditions for an echo to take place
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 |
The safe limit of loudness of audible sound is
State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
Name three characteristics of a musical sound.
How does the wave pattern of a loud note differ from a soft note? Draw a diagram.
Explain the following and illustrate your answer by drawing appropriate diagram:
Loudness
How can one distinguish the sounds of two musical instruments even if they are of the same pitch and same loudness?
What is the noise? Give an example.
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?
