The least count of a metre rule is usually:

Why is scientific notation useful in physics?

Which error is caused by reading a scale from an incorrect eye position?

Which SI prefix represents one thousandth part of a unit?

The SI base unit of electric current is:

Which quantity is derived from distance and time?

Which one of the following is a base physical quantity?

Which statement best defines a physical quantity?

Which of the following is a non-physical quantity?

Which option gives the two essential parts of a measurement?

Which of the following can be measured using an instrument?