B.P.S.C. CDPO (Pre) 2018
The 'Theory of Relativity' is presented by which scientist? ## Page 49 CLICK HERE - JOIN @APNAPDFS The “Theory of Relativity”, was proposed by Albert Einstein. According to this theory, E = mc², where E is energy, m is mass, and c is the speed of light. 14. If force is expressed in Newtons and distance in meters, then work done will be expressed in—
aJoules✓ Correct
bkgwt (kilogram weight)
ckg wt m (kgwtm)
dwatts
eNone of the above/More than one of the above
Explanation
The process of applying force on an object and displacing it in the direction of the force is called work. It is a scalar quantity. Work = force × displacement in the direction of force. If force is in Newton and distance is in metre, then the work done is expressed in joule. The SI unit of work is joule.
general-mental-ability