Question

If 5 divisions of main scale in a vernier caliper coincides with 8 divisions of vernier scale and one main scale division is 1 mm then least count of vernier caliper (in mm) is Find n=?

Answer 1

Explanation:

Given If 5 divisions of main scale in a vernier caliper coincides with 8 divisions of vernier scale and one main scale division is 1 mm then least count of vernier caliper (in mm) is Find n

• We need to find the least count of the vernier calipers.
• So 8 divisions on vernier scale is equal to 5 divisions on Main scale.
• So 1 vernier scale division = 5/8 Main scale division.
• Now Least count = 1 Main scale division – 1 vernier scale division
•                                 = 1 – 5/8 (Main scale division)
•                                 = 3/8 x Main scale division
•                                 = 3/8 x 1 mm
•                                 = 3/8 mm
•                                 = 0.375 mm

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