Question

defind zero error and zero correction​

Answer 1

Answer:

heloooooo

Explanation:

mmmmmmmmmmmmmmmmmmm

Answer 2

Answer:

If the zero of the vernier scale lies to the bottom of the main scale, then it is called positive zero error. If the zero of the vernier scale lies to the top of the main scale, then it is called negative zero error. Zero error is corrected by adding the same number but of opposite sign. This is called zero correction.