A screw gauge gives the following

A screw gauge gives the following reading when used to measure the diameter of a wire. Main scale reading: 0 mm Circular scale reading: 52 divisions Given that 1 mm on main scale corresponds to 100 divisions of the circular scale. The diameter of wire from the above data is: (1) 0.052 cm (2) 0.026 cm (3) 0.005 cm (4) 0.52 cm Past Year (2019 onward - NTA Papers) MCQs Units and Measurement Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers A screw gauge gives the following reading when used to measure the diameter of a wire. Main scale reading: 0 mm Circular scale reading: 52 divisions Given that 1 mm on main scale corresponds to 100 divisions of the circular scale. The diameter of wire from the above data is: (1) 0.052 cm (2) 0.026 cm (3) 0.005 cm (4) 0.52 cm

Question Download Solution PDF A screw gauge gives the following readings when used to measure the diameter of a wire Main scale reading : 0 mm Circular scale reading: 52 divisions Given that 1 mm on the main scale corresponds to 100 divisions on the circular scale. The diameter of the wire from the above data is : CONCEPT: Screw gauge - A screw gauge is an instrument used to measure the diameter or thickness of a thin wire or thin metal sheet. Its least count is 0.01 mm. For the diameter of the wire = MSR +(CSR× LC) ---(1) Where MSR is the main scale reading. CSR is a circular scale reading and LC is the least count. CALCULATION: Given that pitch of the screw gauge, P = 1 mm Number of circular division, n = 100 Thus,least count LC = \(\frac = \)0.01 mm = 0.001 cm Given : MSR = 0 mm CSR = 52 divisions Using equation (1) we get; The Diameter of the wire = MSR + (CSR× LC) =0 + (52× 0.001 cm) = 0.052 cm Hence, option 1) is the right answer.