In an experiment, a set of reading are obtained as follows 1.24 mm, 1.25 mm, 1.23 mm, 1.21 mm

Question

In an experiment, a set of reading are obtained as follows 1.24 mm, 1.25 mm, 1.23 mm, 1.21 mm. The expected least count of the instrument used in recording these readings is _____ mm. [2026]

Smart Achievers · Accepted Answer

(1)

$Readings: 1.24, 1.25, 1.23, 1.21 mm$

$All readings have two decimal places.$

$The smallest difference between any two readings is 0.01 mm.$

$Least count will be 0.01 mm.$

Solution

Q.
In an experiment, a set of reading are obtained as follows 1.24 mm, 1.25 mm, 1.23 mm, 1.21 mm. The expected least count of the instrument used in recording these readings is _____ mm. [2026]

1 0.01

2 0.001

3 0.1

4 0.05

Ans.
(1)

$Readings: 1.24, 1.25, 1.23, 1.21 mm$

$All readings have two decimal places.$

$The smallest difference between any two readings is 0.01 mm.$

$Least count will be 0.01 mm.$

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