Question

A boy uses a vernier callipers to measure the
thickness of his pencil. He measures it to be
1.4 mm. If the zero error of vernier callipers is
+ 0.02 cm, what is the correct thickness of pencil ?
Ans. 1.2 mm​

Answer 1

Answer:

Heya user......... ❤

Correct thickness of pencil measured thickness of his pencil 1.4 mm – correction

Correct thickness of pencil 1.4 mm – (+0.02 cm)

Correct thickness of pencil 1.4 mm – (+0.2 mm)

Correct thickness of pencil 1.4 mm – 0.2 mm

 Correct thickness of pencil 1.2 mm.

Hope it’s helpful....... ☺