What is the basic unit of time?

Correct option is A

The correct answer is (a) Second (s).
· The second (s) is the basic unit of time in the International System of Units (SI). It is the fundamental unit used to measure time intervals.
· All other units of time, such as minutes, hours, and days, are derived from the second.
· One minute equals 60 seconds, and one hour equals 3600 seconds.
Information Booster:
Minute (min.):
· A unit of time equal to 60 seconds, often used in everyday timekeeping.
Minute/second (m/s):
· This is a unit of speed (meters per second) in physics, not a unit of time.
Hour (hr.):
· A unit of time equal to 60 minutes or 3600 seconds.