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1. What is buoyancy? Ans: When a body is immersed completely or partially in a fluid, exerts an upward force on the body. 2.The weight of a body in air is 240N and weight in water is 190N. Find the buoyancy of water? Ans: weight of body in air= 240N weight in water=190N... Read More →

A few mixtures are given below. Tabulate the methods to separate their components and give the reasons for selecting the method. Mixture Method Reason Common salt and ammonium chloride. Sugar solution Petrol and Kerosene Camphor and glass powder Iron powder and salt Answer :... Read More →