Question

One centimeter on a scale is divided into 20 equal division. The least count of the scale is ?

Answer 1

Heya,

According to the question 1 cm scale is divided into 20 equal division.

20 division = 1 cm
1 division = 1/20cm
= 0.05 cm
= 0.05×10 mm
= 0.5 mm

So, the least count of the scale is 0.5 mm

Hope this helps....:)