Advertisements
Advertisements
प्रश्न
Give scientific reason for the following:
Windows sometimes rattle when the low notes of a pipe organ are sounded.
Advertisements
उत्तर
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
संबंधित प्रश्न
If the amplitude of vibration is large, sound is feeble.
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 Loudness of the sound heard.
What is an echo
Name the unit in which the loudness of sound is expressed.
State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
What is meant by the ‘loudness’ of a sound? How is it related to the intensity?
Give a scientific reason.
We can hear the movement of a mosquito’s wings but we cannot hear the movement of our hands.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
