Question

A spherometer has 250 equal divisions marked along the periphery of its disc,and one full rotations of the disc advances by 0.0625 on the main scale.what is the least count of the spherometer?

Answer 1

Hey Dear,

◆ Answer -

Least count = 2.5×10^-4 cm

● Explanation -

# Given -

Pitch = 0.0625 cm

No of divisions = 250

# Solution -

Least count of the spherometer is calculated by formula -

Least count = pitch / no of divisions

Least count = 0.0625 / 250

Least count = 0.00025

Least count = 2.5×10^-4 cm

Hence, least count of the spherometer is 2.5×10^-4 cm.

Best luck...