1.

Distinguish between a simple pendulum and a conical pendulum.

Answer»
Simple pendulumConical pendulum
1. The oscillations of the bob are in a vertical plane.1. The bob performs UCM in a horizontal plane and the string traces out a cone of constant semivertical angle.
2. The energy of the bob transfers back and forth between kinetic energy and potential energy, while its total mechanical energy remains constant.2. The gravitational PE of the bob being constant may be taken to be zero. The total mechanical energy remains constant and is entirely kinetic.
3. The period depends on the 3. length of the string and the acceleration due to gravity.
T = 2π\(\sqrt{L/g}\)		3. The period depends on the length of the string, the ac‐ celeration due to gravity and cosine of the semivertical angle.
T =2π \(\sqrt{Lcos θ/g}\)


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