Name and define the S.I. unit of time. How is it related to (i) minute

1.	Name and define the S.I. unit of time. How is it related to (i) minute (ii) hour, (iii) day and (iv) year ?
Answer» The S.I. unit of time is second. In short form we write it as ‘ S ’. One second is the time interval between the two consecutive ticks that you hear from pendulum wall clock. 1 min = 60 s 1 h = 60 min. = 3600 s. 1 day = 24 h = 86400 s. 1 year = 365 days = 3.15 × 10⁷ s.

Name and define the S.I. unit of time. How is it related to (i) minute (ii) hour, (iii) day and (iv) year ?

Answer»

The S.I. unit of time is second. In short form we write it as ‘ S ’. One second is the time interval between the two consecutive ticks that you hear from pendulum wall clock.

1 min = 60 s

1 h = 60 min. = 3600 s.

1 day = 24 h = 86400 s.

1 year = 365 days = 3.15 × 10⁷ s.

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