Two light strings, each of length l , are fixed at points A and B on a fixed horizontal rod. A small bob is tied to both and in equilibrium the strings make 4 5 ∘ with the rod (Figure 5.114). If the bob is slightly displaced normal to the plane of the strings and released, the period of small oscillation is:

The bob swings about the rod. Its distance from the rod is l sin 4 5 ∘ = l / 2 , the effective length. T = 2 π l / ( 2 g ) .

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PhysicsSHMOscillations and SHMMedium2 min

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Two light strings, each of length $l$ , are fixed at points $A$ and $B$ on a fixed horizontal rod. A small bob is tied to both and in equilibrium the strings make $4 5^{\circ}$ with the rod (Figure 5.114). If the bob is slightly displaced normal to the plane of the strings and released, the period of small oscillation is:

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Answer:

Solution:

The bob swings about the rod. Its distance from the rod is $l sin 4 5^{\circ} = l / 2$ , the effective length. $T = 2 π l / (2 g)$ .

Subject:PhysicsTopic:SHMSubtopic:Oscillations and SHM

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