Physics-Vernier Caliper

NEET Physics Vernier Caliper MCQ Question

Type: MCQ-fact-Hard-Class 12

What happens to the reading of a Vernier Caliper if there is a positive zero error?

A

The observed reading will be less than the actual reading.

B

The observed reading will be more than the actual reading.

C

The observed reading will be equal to the actual reading.

D

The zero error has no effect on the reading.

Correct Answer

Option B

Detailed Explanation

When there is a positive zero error, the zero of the vernier scale is shifted to the right of the main scale, leading to observed readings that are greater than the actual values. Therefore, a correction must be applied.

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