Questions
Two pendulums of lengths 1.69 m and 1.44 m start swinging together. After how many vibrations will they again start swinging together?
detailed solution
Correct option is C
T1=2π1.69g,T2=2π1.44gLet shorter pendulum makes (n + I) vibrations then the longer makes n vibrations to come in phase again then n+1T2=nT1 n+1n=T1T2=1.691.44⇒n=12Talk to our academic expert!
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