SSC
PHYSICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Longer time
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Shorter time
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Either A or B
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None of the above
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Detailed explanation-1: -Galileo observed that no matter how big the swings were, as in when the lamp was first swung, to how small the swings were as the lamp returned to a standstill, the time it took for each swing to complete was exactly the same.
Detailed explanation-2: -Pendulums : Example Question #5 A pendulum of length will take how long to complete one period of its swing? Roughly 6.3 seconds is the time it takes for the pendulum to complete one period.
Detailed explanation-3: -It represents the first known attempt to apply a pendulum to control the rate of a clock. Galileo had observed that the time taken for a pendulum to complete one swing was almost independent of the arc through which it swung and he had used a freely swinging pendulum to time various astronomical events.
Detailed explanation-4: -If you play around with the length of your pendulum you will find that you can adjust it so that it swings back and forth exactly 60 times in one minute. (Note: If you want to be exactly accurate about the pendulum period, see this interesting article.)