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ICSE Physics Model paper

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Sample Paper 2013 Class X Subject PHYSICS Time 11/2Hour Full Marks 80 Section 1 (Attempt all questions) 40 marks 1) (a) A thread having stone tied at its one end is whirled in a horizontal circle. Name the force which provides the centripetal force. [2] (b) A train is travelling on level track at a speed of 72 km/h. It is pulled by an engine which exerts a force of 12000 N. Calculate the power of the engine in kilowatt. [2] (c) What is an inclined plane? Give two examples of its use in daily life. [2] (d) A load of 800 N is lifted through a height of 2 m by an effort of 40 N applied at a distance of 50 m. Calculate efficiency. [2] (e) A ball of mass 8 kg is dropped from a height of 10 m. What is the velocity with which it strikes the ground? [2] 2) (a) When a bird looks at a fish in water, does it appear raised or deeper than it actually is? When a fish looks at a bird does it appear nearer or further away? [2] (b) Complete the diagram by drawing the corresponding incident ray. [2]

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