Advertisements
Advertisements
Question
Give scientific reason for the following:
Windows sometimes rattle when the low notes of a pipe organ are sounded.
Advertisements
Solution
When the windows rattle, at that moment, its natural frequency corresponds with the frequency with which the low notes of a pipe organ are sounded. Thus, resonance takes place which makes the windows to vibrate violently.
APPEARS IN
RELATED QUESTIONS
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
Name the factor that determines Pitch of the note.
The time period of a wave is 2 s. Its frequency is ..........
When sound travels in form of a wave
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.
(i) Name the characteristics of sound associated with the above obervation.
(ii) Give a reason for the above observation.
Explain the following and illustrate your answer by drawing appropriate diagram:
Quality of a musical note.
Two waves of the same pitch have their amplitudes in the ratio 2 : 3.
(i) What will be the ratio of their loudness?
(ii) What will be the ratio of their frequencies?
What does the intensity of sound depend upon?
