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The sound wave has frequency 500Hz and velocity 350m/s. What is the distance between the two particles having phase difference of 60 degree? A. 0.7 cm B. 12 cm C. 120 cm D. 70 cm

The sound wave has frequency 500Hz and velocity 350m/s. What is the distance between the two particles having phase difference of 60 degree?Β 
A. 0.7 cm
B. 12 cm
C. 120 cm
D. 70 cmΒ 

Grade:12th pass

1 Answers

jayanti
31 Points
2 years ago
Given , velocity = 350m/s
frequency = 500 Hz
so , wavelength = velocity / frequency = 350/500 = 0.7m
given phase difference = 60 = pie /3
phase difference = 2 pie x/ wavelength 
x = phase difference X wavelength / 2 pie
    pie 0.7/ 3 X 2 pie = 0.116m = 12 cm

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