Work, Power and EnergyHard
Question
Three objects, A : (a solid sphere), B : (a thin circular disk) and C = (a circular ring), each have the same mass M and radius R. They all spin with the same
angular speed about their own symmetry axes. The amounts of work (W) required to bring them to rest, would satisfy the relation :-
Options
A.
WC > WB > WA
B.
WA > WB > WC
C.
WB > WA > WC
D.
WA > WC > WB
More Work, Power and Energy Questions
On moving a charge of 20 coulombs by 2cm, 2 J of work is done, then the potential difference between the points is...The power radiated by a black body is P and it radiates maximum energy at wavelength λ0. If the temperature of the ...Two metallic plates A and B, each of area 5 × 10-4m2 are placed parallel to each other at a separation of 1 cm. Pla...Two bodies of mass 1kg and 4kg have equal K.E. then the ratio of their momentum is...A body of mass 6 kg under a force which causes displacement in it given ′S = ′ metres where ′t′ ...