JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumCalculation
JEE Main 26 July 2022, Shift 1, Physics Q50
Question 50 of 90 in this shift, Physics question 20 of 30, Section A.
A screw gauge of pitch 0.5 mm is used to measure the diameter of uniform wire of length 6.8 cm, the main scale reading is 1.5 mm and circular scale reading is 7. The calculated curved surface area of wire to appropriate significant figures is :
[Screw gauge has 50 divisions on its circular scale]
- (1)
- (2)Official answer
- (3)
- (4)
Official answer
Option 2
NTA final key.
- Chapter
- Units and Measurements
- Topic
- No close match in our taxonomy
- Idea tested
- No close match in our taxonomy