Topic: Physics Units of Measurement Subtopic: Measuring instruments
What is difference between mechanical and digital watch?
Answer: A stop watch is an instrument used to measure time intervals. They are of two types; mechanical and digital. The least count of a mechanical stop watch is 0.1 s and of digital stop watch is of 0.01 s.
- What is zero error?
- Why recoil of gun is much smaller than velocity?
- What is a momentum?
- What are prefixes?
- What are base units?
- Define physical quantities?