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प्रश्न
What is an echo
उत्तर
The sound heard after reflection from a distant obstacle after the original sound has ceased is called an echo.
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संबंधित प्रश्न
Loudness is determined by the __________ of vibration.
The pitch of a stringed instrument is increased by .................. tension in string.
If a drum is beaten hard, its loudness ................
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 |
Define the following terms :
(a) Amplitude
(b) Frequency
(c) Time period.
Name three characteristics of a musical sound.
Name and define the characteristic which enables one to distinguish two sounds of same loudness, but of different frequencies, given by the same instrument.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
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?
