MCQ
What is the SI unit of time?
Unit-1 Physical Quantities and Measurement
A
Second
B
Minute
C
Hour
D
Day
Explanation
The second is the SI base unit of time; minute, hour and day are not SI units.
Related MCQs
1 micrometre (1 um) is equal to:
Unit-1 Physical Quantities and Measurement
View
Accuracy of a measurement refers to:
Unit-1 Physical Quantities and Measurement
View
Round 3.14159 to three significant figures:
Unit-1 Physical Quantities and Measurement
View
The scientific notation of 0.030 is:
Unit-1 Physical Quantities and Measurement
View
The prefix kilo means:
Unit-1 Physical Quantities and Measurement
View
A quantity has a true value of 10.0 units and a measurement gives 9.8 units. The absolute error is:
Unit-1 Physical Quantities and Measurement
View