Question

Least count of measuring cylinder = ml
Zero error of spring balance (e) = g wt
Weight of solid body W =. g

Answer 1

Explanation:

The Least count of an instrument that is used to measure something is the least value of a physical quantity which can be measured accurately while using the instrument. For example, In a spring balance having a range of 0 to 25 kilograms, it can be observed that each kilogram on the scale is divided into ten equal parts. Therefore, the minimum value it can measure is one hundred grams, which can be measured as follows: Measurement = 1 kg Total Number of divisions = 10 Least count= (1/10) = 0.1kg (or 100g) Hence 100g is the least count of this instrument. In a similar way, the least counts of different spring balances having different ranges can be identified.