Note All questions are compulsory Each question carry 1 mark 1 The mathematical expression of...
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Note All questions are compulsory Each question carry 1 mark 1 The mathematical expression of density is Density mass volume Density mass x volume a b C d Density area x mass Density volume x weight 2 Density of water in SI system is 3 1000 b 100 c 10 d 1 3 If the density of object is more than water it will Float on water a b Sink in water c d Neither floats nor sinks Both a and b 4 Which physical quantity is measured in dyne centimetre Torque Moment of force a b c Turning effect of force d All of the above 5 If the perpendicular distance between fixed point and poin of application of force increases the moment o force a Increases b Decreases c Remains same d None of these 6 The SI unit of pressure is a Newton metre b Dyne centimetre c Pascal d None of these 7 A force of 10 N acting on a body causes a displacement of 2m in its own direction The work done by the force is a b c 5 joule d 0 joule 10 joule 20 joule 8 If the mass of the body is doubled the kinetic energy will be a Same b Halved c Doubled d Four times 9 Force applied on a wall of the room results in a Negative work done b Zero work done c Both a and b d None of these
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