the ratio of the frequency of two sound waves is 2:3 then the ratio of time period is
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Answer:
Given amplitude ratio,A1:a2=4/9
l1:l2=4:9
l1:12=4:9
Step-by-step explanation:
(ii)Frequency pitch
ratio of frequency=1:1
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Given : the ratio of the frequency of two sound waves is 2:3
To Find : the ratio of time period
Solution:
Frequency = 1/Time period
Time Period = 1/Frequency
frequency of two sound waves is 2:3
f₁ : f₂ = 2 : 3
f₁ = 2k and f₂ = 3k
t = 1/f
=> t₁ = 1/f₁ = 1/2k
t₂ = 1/f₂ = 1/3k
t₁ / t₂ = (1/2k)/(1/3k)
=> t₁ / t₂ = 3k/2k
=> t₁ / t₂ = 3/2
=> t₁ : t₂ = 3 : 2
ratio of time period is 3 : 2
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