Two vibrating tuning forks produce waves given by y 1 = 4 sin 500 π π t, y 2 = 2 sin 506 π π t. If they are held near the ear of a person, the person will hear
Text Solution
Verified by ExpertsThe correct answer is:
A
Comparing given equation with standard equations y = A sin ꞷt
We get A 1 = 4, ꞷ 1 = 500 π π
and A 2 = 2, ꞷ 2 = 506 π π
Frequency n = 
∴ n 1 = 
= 
= 250
n 2 = 
= 
= 253
∴ number of beats
= n 2 – n 1 = 253 – 250 = 3
= 
= 
= 
= 
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