Question

3. Thickness of a cricket ball is measured by
4. Radius of a thin wire is measured by
5. A physical balance measures small
differences in mass up to









3.bilaterally symmetrical
4.zero
5.uranium-235​

Answer 1

Answer:

Vernier caliper

Thickness of ball is measured by Vernier caliper.

Explanation:

The radius of a thin wire is measured by an instrument called a “screw gauge”. It is used for the measurement of small quantities like diameter of a wire due to its small least count. Least count is the minimum value an instrument can measure. The least count of a screw gauge is 0.01 mm.