Sound WavesHard
Question
Waves from three soures of the same intensity and frequencies 2003, 2005 and 2013 Hz superimpose. The number beats per second is :
Options
A.8
B.10
C.17
D.20
Solution
2Hz →
(Total 2 maxima in 1s)8Hz →
(Total 8 maxima in 1s)10Hz →
(Total 10 maxima in 1s)
But
So number of beats = (10 + 8 + 2) - (3) = 17
Create a free account to view solution
View Solution FreeMore Sound Waves Questions
When aguiter starting is sounded with a 440Hz tuning fork, a beat frequency of 5Hz is heard . if the experiment is repea...The number of possible natural oscillations of air column in a pipe closed at one end of length 85 cm whose frequencies ...A source of sound is in the shape of a long narrow cylinder radiating sound waves normal to the axis of the cylinder. Tw...Two vibrating tuning forks produce progressive waves given by y1 = 4 sin 500πt and y2 = 2 sin 506 πt. Number o...The distance between two consecutive crests in a wave train produced in string is 5 m. If two complete waves pass throug...