SHMHard
Question
A U-tube contains mercury of total length 2 as shown and is disturbed so that it oscillates back and fourth from arm to arm. If we neglect friction, the period of oscillation is:
Options
A.
B.
C.
D.
Solution
liquid is displaced by x
at displaced position
So net force on fluid = (2xA)ρg = mω2x
= rA (2l)ω2x
ω =
⇒ T = 
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