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During summer, the time period of the pendulum of a clock changes to 2.02 s from 2 s. The clock runsA. slow by 14.4 minutes per dayB. fast by 14.4 minutes per dayC. slow by 28.8 minutes per dayD. fast by 28.8 minutes per day |
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Answer» Correct Answer - A In one oscillation pendulum loses time 0.02 s. `therefore` In day `((86400)/(2))`oscillation loses time is, `((86400)/(2))xx0.02=864s` `=(864)/(60)=14.4min`. |
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