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If the M.S.D ...

Question

If the M.S.D of a reading is $81$ and the pitch of the scale is $0.05 c m$ than the main scale reading is:

A

40.5 c m

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B

4.05 c m

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C

4.1 c m

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D

0.45 c m

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Solution

The correct option is A $4.05 c m$
The main scale reading $= M S D \times p i t c h = 81 \times 0.05 = 4.05 c m$

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