A sound wave of frequency 80 Hz is traveling with speed 320 m/s.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
Δ φ = 
Δ t
= 2 π f Δ t
= 2 π × 80 × 400 × 10 –3
= 64 π
Δφ = 
Δ x
= 
Δ x
= 
= 
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