When the gap is closed without placing any object in the screw gauge whose least count is 0.005mm, the 5th division on its circular scale with the reference line on main scale. When a small sphereis placed, reading on main scale advances by 4 divisions, whereas circular scale reading advances tofive times the corresponding reading when no object was placed. There are 200 divisions on thecircular scale. The radius of the sphere is

Shah Rupali , 6 Years ago

Grade 11