If 25venier scale divisions coincide with 20 main scale divisions. Find least count of venier calliper. ( One main scale division = 1mm )

Options

A. 0.02cm
B. 0.02mm
C. 0.01 cm
D. 0.01mm

Explanation

To find the least count of the vernier caliper, we can follow these steps:

### Step 1: Understand the relationship between the divisions
We know that 25 vernier scale divisions coincide with 20 main scale divisions. This means that the total length represented by the vernier scale divisions is equal to the total length represented by the main scale divisions.

### Step 2: Find the value of one vernier scale division
Since 20 main scale divisions are equal to 25 vernier scale divisions, we can express the length of one vernier scale division in terms of main scale divisions:
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