Advertisements
Advertisements
Question
Draw a curve showing density or pressure variations with respect to distance for a disturbance produced by sound. Mark the position of compression and rarefaction on this curve. Also, define wavelengths and time periods using this curve.
Advertisements
Solution
The points of maximum density (or pressure) and minimum density (or pressure) are also called crests and troughs respectively.
Wavelength (A): The distance between two consecutive compressions or two consecutive rarefactions is called wavelength.
Time period (T): Time period of a wave is defined as the time taken by its two consecutive compressions or rarefactions to cross a fixed point.
APPEARS IN
RELATED QUESTIONS
How is sound produced ?
When we change a feeble sound to a loud sound, we increase its :
What causes sound?
Complete the following sentences :
Wave velocity = ________________ × wavelength.
An observer A fires a gun and another observer B at a distance 1650 m away from A hears its sound. If the speed of sound is 330 m s-1, find the time when B will hear the sound after firing by A.
Can you hear each other in a dark room?
A musical instrument is producing continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through ______.
