Dimensions of stress are

 [ NEET 2020 ]                                     

IN AN EXPERIMENT, THE PERCENTAGE ERROR OCCURRED IN THE MEASUREMENT OF A PHYSICAL QUANTITIES ‘A’, ‘B’, ‘C’ & ‘D’ ARE 1%, 2%, 3% & 4 % RESPECTIVELY THEN THE MAXIMUM PERCENTAGE OF ERROR IN THE MEASUREMENT OF ‘X’,

 WHERE, \[X= \frac{A^{2}B^{\frac{1}{2}}}{C^{\frac{1}{3}D^{3}}}\] UNIT OF THERMAL CONDUCTIVITY IS [NEET 2019] a. J m k -1    b. J m -1 k...

A screw gauge has least count of 0.01 mm and there are 50 divisions in its circular scale. The pitch of the screw gauge is :

(A) 0.01 mm        (2) 0.25 mm          (3) 0.5 mm            (4) 1.0 mm A micrometer screw gauge, is a device which is used measure the dim...