SHORT QUESTION if we drop piece of copper in water , and temperature of water rises ? under what conditions they are in thermal equilibrium? LONG QUESTION 2 jets at the same time take off from galaxy..... in opposite direction . 1st jet has speed 0.725 , what is speed of other jet relative to 1st jet? MCQS mcqs almost paradox k mcqs mai sy hi thy aur phi mathematics ki videos sy. time like and spacelike power E=mc2 E aur m ka relation kia hy ( 2 mcqs thy ) magnetic flux and magnetic field k topic sy thy 3 ,4 5 numerical type thy 1; resistance find krni thi 2 ; charge find krna thi aur bhi thy but yaad ni( Bcz statement lambi thi) THANKS PARADOX