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JEE MAIN 2022
29-07-22 S1
Question
In an experiment to find out the diameter of wire using screw gauge, the following observation were noted (a) Screw moves 0.5 mm on main scale in one complete rotation
(b) Total divisions on circular scale = 50
(c) main scale reading is 2.5 mm
(d) 45th division of circular scale is in the pitch line
(e) Instrument has 0.03 mm negative error
Then the diameter of wire is :
Select the correct option:
A
2.92 mm
B
2.54 mm
C
2.98 mm
D
3.45 mm
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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JEE Main
Physics
Hard
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