Riya invites all her friends to her birthday party that is to begin at 6 pm.
Everyone reaches on time except Vandana. She reaches at 8 pm. They could not start the function on time.
(a)Which principle is used for measuring time in clocks and watches?
(b)Why should we be punctual?
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Explanation:
Everyone reaches on time except Vandana. She reaches at 8 pm. They could not start the function on time.
(a)Which principle is used for measuring time in clocks and watches?
(b)Why should we be punctual?
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