Which of the following are not correct? (i) The basic unit of time is second. (ii) Every object moves with a constant speed. (iii) Distances between two cities are measured in kilometres. (iv) The time period of a given pendulum is not constant.
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1
Answer:
4 is the answer of your question
Explanation:
because the time period od a endulam is constant
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0
Answer:
4 is the answer of ypur question
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