Question:
A student measured the diameter of a small steel ball using a screw gauge of least count $0.001\, cm$. The main scale reading is $5\, mm$ and zero of circular scale division coincides with $25$ divisions above the reference level. If screw gauge has a zero error of - $0.004\, cm$, the correct diameter of the ball is
A student measured the diameter of a small steel ball using a screw gauge of least count $0.001\, cm$. The main scale reading is $5\, mm$ and zero of circular scale division coincides with $25$ divisions above the reference level. If screw gauge has a zero error of - $0.004\, cm$, the correct diameter of the ball is
Updated On: May 3, 2024
- 0.529 cm
- 0.521 cm
- 0.053 cm
- 0.525 cm
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The Correct Option is A
Solution and Explanation
Diameter of the ball
$= MSR + CSR \times$ (Least count) - Zero error
$=0.5 \,cm +25 \times 0.001-(-0.004)$
$=0.5+0.025+0.004$
$=0.529\, cm$
$= MSR + CSR \times$ (Least count) - Zero error
$=0.5 \,cm +25 \times 0.001-(-0.004)$
$=0.5+0.025+0.004$
$=0.529\, cm$
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Physical World
The physical world includes the complications of the natural world around us. It is a type of analysis of the physical world around us to understand how it works. The fundamental forces that control nature are:
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