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...
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...
1) The molecules of the substance are formed by polar covalent bonds:A) HCL.B) H2.C) CL2.D) I2.2) There are only 14 possible 3D lattices are called:A) Straight lattice.B) Unit lattice.C) Bravais lattice.D)...