Advertisements
Advertisements
प्रश्न
Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table.
Advertisements
उत्तर
When the stem of a vibrating fork is pressed against the table top, the tuning fork forces the table top to vibrate with its own frequency. These forced vibrations send forth a greater energy and produce large sound. Now, if the natural frequency of the table is equal to that of the vibrating fork, resonance occurs and a louder sound is heard.
APPEARS IN
संबंधित प्रश्न
Loudness is determined by the __________ of vibration.
In a longitudinal wave, compression and rarefaction are formed.
The pitch of sound depends on frequency.
The pitch of a stringed instrument is increased by .................. tension in string.
The pitch of a flute is decreased by ................... length of air column.
The safe limit of loudness of audible sound is
Obtain relationship between the time period and frequency.
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Two waves of the same pitch have amplitudes in the ratio 1 : 3. What will be the ratio of their :
(i) intensities and
(ii) frequencies
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
