Question Detail

PHY 101 Physical Quantities, Units, and Dimensions Objective Question
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Question

What is the least count of a typical micrometer screw gauge?
Options
A 0.1 cm
B 0.01 cm
C 0.1 mm
D 0.01 mm
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

The least count is the smallest measurement an instrument can make. A typical micrometer screw gauge has a least count of 0.01 mm. This is calculated by dividing its pitch (often 0.5 mm) by the number of divisions on its circular scale (often 50).

Hint

Micrometers are used for very small measurements, like the diameter of a wire.

Question Info

Course: PHY 101
Topic: Physical Quantities, Units, and Dimensions
Type: Objective
Difficulty: Not specified
Question 683 of 1250
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