Physics · 2018
NEET 2018 · 6 May · Code AA · Q37
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…
A student measured the diameter of a small steel ball using a screw gauge of least count $\displaystyle 0.001$ cm. The main scale reading is $\displaystyle 5$ mm and zero of circular scale division coincides with $\displaystyle 25$ divisions above the reference level. If screw gauge has a zero error of $\displaystyle -0.004$ cm, the correct diameter of the ball is
Official answer
From NTA’s final answer key for this paper.
(4)
0.$\displaystyle 529$ cm
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NEET (UG) 2018 Physics question, with the answer from NTA’s final answer key. Where our answers come from.