A student appears in an exam and is asked to measure the length of a side of a triangle. Which of the following instruments is suitable for the purpose?
A
Protactor
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B
Microscope
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C
Vernier callipers
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D
Meter scale
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Solution
The correct option is C Meter scale Meter scales are used to measure the length. Although one can use the varnier callipers but in this case it might introduce unnecessary errors.