Physics
Figure shows four waves A, B, C and D.
Name the wave which shows
(a) a note from a musical instrument,
(b) a soft note,
(c) a shrill note.
Answer
(a) Note from a musical instrument is shown by figure (d) because the sound produced by the musical instruments comprises of different frequencies and amplitudes resulting in a mixed type of wave form.
(b) Soft note is shown by figure (a) because this wave has low amplitude.
(c) Shrill note is shown by figure (c) because this wave has high frequency.
Related Questions
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give a reason for your answer.
Two musical notes of the same pitch and same loudness are played on two different instruments. Their wave patterns are as shown in figure.
How do they differ in:
(a) Loudness
(b) Pitch and
(c) Quality?
What happens when a lighted candle is placed in front of a loudspeaker making a loud and steady noise. Give reason.
Two waves of the same pitch have amplitudes in the ratio 1:3. What will be the ratio of their:
(i) loudness
(ii) pitch?