Physics
WAEC 2017
The diagram above is a micrometer screw gauge. Determine its reading.
-
A.
2.44mm
-
B.
2.46mm
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C.
2.86mm
-
D.
2.96mm
Correct Answer: Option B
Explanation
- Main scale: 2 mm
- Thimble scale: 46 divisions × 0.01 mm = 0.46 mm
Total reading = 2 + 0.46 = 2.46 mm
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