Question

Determine the time period of oscillation of compound pendulum.

Answer 1

Answer:

If a uniform rod is used as a compound pendulum and the period of oscillation T measured for different values of h on either side of the centre of gravity then a graph like the one in Figure 2 may be obtained.

Since the formula for a simple pendulum is T = 2π(L/g)1/2 we can define a quantity L called the length of the simple equivalent pendulum.

This is given by L = [k2 + h2]/h

For two distances h1 and h2 on either side of the centre, L = h1 + h2 (as can be seen from the graph in figure 2) and h1h2 = k2. At the minimum h1 = h2 and h = k. A value of g can be determined by measuring L from the graph.

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Answer 2

Explanation:

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