[{"id":162690,"question":"Moment of linear momentum is called.","choices":[{"text":"Moment arm","value":"A"},{"text":"Moment of inertia","value":"B"},{"text":"Inertia","value":"C"},{"text":"Angular momentum","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":162689,"question":"Formula for calculating moment of inertia of the bodies of one pair is same. Tick the answer.","choices":[{"text":"Disc, sphere","value":"A"},{"text":"sphere, hoop","value":"B"},{"text":"Thin rod, hoop","value":"C"},{"text":"Hoop,disc","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":162688,"question":"Final velocity of a hoop is __________ the final velocity of a disc having same mass and radius on coming down an inclined plane.","choices":[{"text":"Greater than","value":"A"},{"text":"smaller than","value":"B"},{"text":"Equal to","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155273,"question":"In case of planets, the necessary acceleration is provided by:","choices":[{"text":"Gravitational force","value":"A"},{"text":"Coulomb force","value":"B"},{"text":"Frictional force","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":155272,"question":"A body can have constant velocity when it follows:","choices":[{"text":"A circular path","value":"A"},{"text":"A rectilinear path","value":"B"},{"text":"Trajectory of a projectile","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155271,"question":"The instantaneous acceleration of a body moving with constant speed in a circle:","choices":[{"text":"Remains constant","value":"A"},{"text":"Is called centripetal acceleration","value":"B"},{"text":"Tangential acceleration","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155270,"question":"When a body moves with a constant speed in a circle:","choices":[{"text":"No work is done on it","value":"A"},{"text":"No acceleration is produced in the body","value":"B"},{"text":"Velocity remains constant","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":155268,"question":"When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:","choices":[{"text":"Zero","value":"A"},{"text":"Its average velocity","value":"B"},{"text":"Its angular displacement","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155267,"question":"The angular speed of a particle moving along a circular path is 5 Pie rad sec<sup>-1</sup>, Its period of motion is:","choices":[{"text":"2.5 sec","value":"A"},{"text":"0.06 sec","value":"B"},{"text":"15.7 sec","value":"C"},{"text":"0.4 sec","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":155266,"question":"Angular velocity is a:","choices":[{"text":"Scalar quantity","value":"A"},{"text":"Vector quantity","value":"B"},{"text":"Complex quantity","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155265,"question":"Circular motion is an example of motion in:","choices":[{"text":"One dimension","value":"A"},{"text":"Two dimensions","value":"B"},{"text":"Three dimensions","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155264,"question":"The useful unit of the angular displacement in SI unit is:","choices":[{"text":"Degree","value":"A"},{"text":"Revolution","value":"B"},{"text":"Radian","value":"C"},{"text":"Metre","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":155263,"question":"A body moving along the circumference of a circle of radius R completes one revolution. The radius of a covered path to the angle subtended at the centre is:","choices":[{"text":"Radius of the circle","value":"A"},{"text":"Twice the radius","value":"B"},{"text":"Thrice the radius","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":155262,"question":"A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:","choices":[{"text":"49 rad/sec<sup>2</sup>","value":"A"},{"text":"1 rad/sec<sup>2</sup>","value":"B"},{"text":"0.16 rev/sec<sup>2</sup>","value":"C"},{"text":"Both A and C","value":"D"},{"text":"Both B and C","value":"E"}],"correctAnswer":5},{"id":155261,"question":"A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 m/sec<sup>2</sup>in this case, find radius of the circular path:","choices":[{"text":"1 m","value":"A"},{"text":"5 m","value":"B"},{"text":"10 m","value":"C"},{"text":"15 m","value":"D"},{"value":"E"}],"correctAnswer":3}]