SHMHard
Question
Two simple pendulums, having periods of 2s and 3s respectively, pass through the mean position simultaneously at a particular instant. They may be in phase after an interval of :
Options
A.5 s
B.3 s
C.1 s
D.None of above
Solution
ω1 = 
= π and ω2 = 
They will be in phase if
(ω1 - ω2) t = 0, 2π, 4π.........
⇒ t =
= 6 sec
= π and ω2 = They will be in phase if
(ω1 - ω2) t = 0, 2π, 4π.........
⇒ t =
= 6 secCreate a free account to view solution
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