a classmate of your school is not following online class rules and not wearing uniform, sitting in the place where is noice, not submitting notes on time . write a dialog writing between you and you friend to take action and adive to not do that.
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Frequency -- the number of oscillation per second........
Time period.-- the time taken by A vibrating ( oscillating ) object to complete one vibration....
Hope it helps you....✌️✌️
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