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प्रश्न
Name one property of waves that do not change when the wave passes from one medium to another.
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उत्तर
The frequency of the waves does not change when the waves travel from one medium to another.
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संबंधित प्रश्न
Name the factor that determines Pitch of the note.
If a drum is beaten hard, its loudness ................
State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
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?
Draw a diagram to show the waveforms of a pure note and a musical note, 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 scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
