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The Central Board of Secondary Education (CBSE) conducts practical examination for Class IX students. This laboratory manual has been designed to help Class XI students prepare for Activities, Experiments and Viva Voce for Physics.The present book for CBSE Class IX Physics Experiments, Activities and Viva Voce has been divided into two sections covering Experiments and Activities. The List of Experiments section covers To measure diameter of a given wire using screw gauge, To determine volume of an irregular lamina using screw gauge, To determine the mass of two different objects using a beam balance, To find the weight of a given body using parallelogram law of vectors, etc whereas the Activities section covers To observe change of state and plot a cooling curve for molten wax, To observe & explain the effect of heating on a bi-metallic strip, To study the effect of detergent on surface tension of water by observing capillary rise, To study the factors affecting the rate of loss of heat of a liquid, etc.As the book cum laboratory manual covers all the experiments and activities, it for sure will help Class XI students prepare their best for CBSE Class XI Physics Practical Examination.