Question 47 of 70
If the screw on a screw-gauge is given six rotations, it moves by on the main scale. If there are divisions on the circular scale the least count of the screw gauge is:
Show answer and solution
Answer: (A)
Pitch
L.C.
L.C.
Experimental Physics
JEE Main level, single correct, medium
JEE Main question paper PDF
Open a shift to read the full paper on this page, or download it.
Opening paper…
More Physics practice
- Experimental PhysicsIn a screw gauge when the circular scale is given five complete rotations it moves linearly by mm. If the circular scale has divisions, the least count of screw gauge is _____ mm.
- Experimental PhysicsIn a screw gauge the zero of main scale reference line coincides with the fifth division of the circular scale when two studs are in contact. There are divisions in circular scale and pitch of screw gauge is mm. When diameter of a sphere is measured, the reading of main scale is mm and division of circular scale coincides with the reference line of main scale. The diameter of sphere is _______ mm.
- Experimental PhysicsIn an experiment, a set of reading are obtained as follows - , 1.21 mm. The expected least count of the instrument used in recording these readings is mm.
- Experimental PhysicsWhen both jaws of vernier callipers touch each other, zero mark of the vernier scale is right to zero mark of main scale, mark on vernier scale coincides with certain mark on the main scale. While measuring the length of a cylinder, observer observes 15 divisions on main scale and division of vernier scale coincides with a main scale division. Measured length of cylinder is mm.
(Least count of Vernier calliper ) - Experimental PhysicsIn a vernier callipers, 50 vernier scale divisions are equal to 48 main scale divisions. If one main scale division , then the least count of the vernier callipers is mm.
- Experimental PhysicsIn a screw gauge, the zero of the circular scale lies 3 divisions above the horizontal pitch line when their metallic studs are brought in contact. Using this instrument thickness of a sheet is measured. If pitch scale reading is 1 mm and the circular scale reading is 51 then the correct thickness of the sheet is mm.
[Assume least count is 0.01 mm ]
JEE Main Physics practice question on Experimental Physics (Experimental Physics), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.