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Vernier Caliper

Two identical...

Question

Two identical scales are joined such that 21 cm mark of one scale is coinciding with 0 mark on the other scale. A line ‘X’ is measured as shown. Find the length of the line.

A

14 cm

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B

27 cm

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C

14 cm

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D

28 cm

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Solution

The correct option is D 28 cm
The length of the line measured from left scale = 21 cm.
The length of the line measured from right scale = 7 cm.
Therefore, the total length of the line X = 21 + 7 = 28 cm.

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