Question

write a note on facault pendulum.​

Answer 1

Answer:

The rotation of the plane of swing of Foucault's pendulums was the first laboratory demonstration of the Earth's spin on its axis. While a Foucault pendulum swings back and forth in a plane, the Earth rotates beneath it, so that relative motion exists between them.

Answer 2

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The Foucault pendulum or Foucault's pendulum is a simple device named after French physicist Léon Foucault and conceived as an experiment to demonstrate the Earth's rotation. The pendulum was introduced in 1851 and was the first experiment to give simple, direct evidence of the earth's rotation. Foucault pendulums today are popular displays in science museums and universities.[1]The first public exhibition of a Foucault pendulum took place in February 1851 in the Meridian of the Paris Observatory. A few weeks later, Foucault made his most famous pendulum when he suspended a 28-kilogram (62 lb) brass-coated lead bob with a 67-metre long (220 ft) wire from the dome of the Panthéon, Paris. The period of the pendulum was {\displaystyle 2\pi {\sqrt {\frac {l}{g}}}=16.5} {\displaystyle 2\pi {\sqrt {\frac {l}{g}}}=16.5} seconds.

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