Work, Power and EnergyHard
Question
A uniform cylinder of length L and mass M having cross- sectional area A is suspended, with its length vertical, from a fixed point by a mass less spring, such that it is half submerged in a liquid of density σ at equilibrium position. The extension x0 of the spring when it is in equilibrium is :
Options
A.

B.

C.

D.

More Work, Power and Energy Questions
In the experiment of photoelectric effect, collector is kept at +2 volt potential w.r.t. emitter. If energy of each phot...The relation between conservative force and potential energy U is given by :-...A body is rolling without slipping on a stationary horizontal surface and its rotational kinetic energy is equal to the ...A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in pa...A bag (mass M) hangs by a long thread and a bullet (mass m) comes horizontally with velocity v and gets caught in the ba...


