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The diameter of a thin wire can be measu...

The diameter of a thin wire can be measured by :

A

a vernier callipers

B

a metre rule

C

a screw gauge

D

none of these.

Text Solution

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The correct Answer is:
To determine the diameter of a thin wire, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Measurement Tools**: - The question provides four options: vernier caliper, meter rule, screw gauge, and none of these. 2. **Evaluate Each Tool**: - **Vernier Caliper**: This tool can measure dimensions with good accuracy, but it is generally more suited for larger objects and may not provide the precision needed for very thin wires. - **Meter Rule**: This is a basic measuring tool that is not precise enough for measuring the diameter of thin wires. - **Screw Gauge**: This is a specialized instrument designed for measuring small dimensions with high precision. It can measure diameters with an accuracy of up to 0.001 cm. 3. **Select the Best Tool**: - Among the options, the screw gauge is specifically designed for measuring the diameter of thin objects like wires. It consists of a hollow cylinder (thimble) that rotates to allow fine adjustments, and a U-frame that holds the wire in place. 4. **Conclusion**: - Therefore, the correct answer is **option c: a screw gauge**. This instrument is the most suitable for accurately measuring the diameter of a thin wire.
To determine the diameter of a thin wire, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Measurement Tools**: - The question provides four options: vernier caliper, meter rule, screw gauge, and none of these. 2. **Evaluate Each Tool**: ...
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