Tip #1 From the NCERT book, practice each and every worked-out example, graph and diagram, especially- a) Ray diagram for Astronomical Telescope, Compound Microscope and Reflecting Telescope. b) Diagrams...
The principle, Construction and Working of a Motor A motor is a device that converts Electrical energy to Mechanical energy. Principle: It works on the principle of Motor effect, which states that...
1. What are vitamins?Vitamins are organic compounds that are essential for growth and nutrition. They are required in small quantities in the food because they cannot be produced in the body.2. Classify...