This note contains all the shortcuts on the topic which are needed to crack any competetive exam(NEET, JEE- MAINS ADVANCED, JENPAS, etc) on 12th standard or equivalent level.It has covered bouyancy, surface tension, hydrostatics, hydrodynamis, viscousity and elasticity. Without any exception, it covers all unermined yopics like excess pressure, capillary accsent, venturimeter, range of Beflow, terminal velocity, Archemeded's principle, Bernoulli's equation, Poisellius equation, angle of con...