How to prepare for the CBSE Class 12 Board Exam? In this lesson, I will teach you how to prepare for the CBSE Class 12 Board Exam. Your class 12 board exam is probably the most important exam in your...
Archimedes' principle: principle that states that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid. The principle applies to both floating and submerged bodies...
Acceleration due to gravity and its variation with altitude, depth and rotation of earth I. Expression for acceleration due to gravity: Consider earth to be a sphere of radius 'R' and mass 'Me'....