Vernier calipers are mainly used to measure:

Why should the zero mark of a metre rule coincide with one edge of the object?

The least count of the Vernier calipers described in the chapter is:

Which practice helps reduce parallax error while using a metre rule?

Which part of Vernier calipers is used to measure internal dimensions?

The least count of a measuring instrument means:

Which part of Vernier calipers is used to measure depth?

Which rule should be followed when adding numbers in scientific notation?

If the zero of the Vernier scale is to the right of the zero of the main scale, the instrument shows:

When a decimal point is moved to the right for a very small number, the exponent of 10 becomes:

If the zero of the Vernier scale is to the left of the zero of the main scale, the correction is made by: