Chapter-1 Diversity in Organisms Biology is the branch of science which deals with the study of living things. The word biology is derived from two words: Bio means living things and logy means study...
Concepts of Physics Vol I and II by H.C. Verma :- These all-inclusive books are tailored for the students of 10+2 level. Apart from covering all the topics related to the JEE advanced syllabus, the two...
Work done by an external non-conservative force is equal to change in the mechanical energy of the system.Final M. E - Initial M. E = WIf an external force does no work, then mechanical energy will be...