Question

1. A student measures the length of an object and
recorded it as 2.500 mm. Answer the following
questions:
(a) Find the least count of the instrument used
by him.​

Answer 1

question:

1. A student measures the length of an object and

recorded it as 2.500 mm. Answer the following

questions:

1) Find the least count of the instrument used

by him ?

2) Find error made in the instrument ?

3) Find the percentage error ?

answer:

Data is entered upto 3 dcimal place. hence least count is 0.001 mm

error is + 0.001 mb in 2.500

percentage error + (0.001/2.500)×100=0.04%