### Physics Class 11 - Chapter 5BRCircular MotionBRTest - 5

 1.    Artificial gravity is a?a) Action force b) Active forcec) Reaction forced) Orbital force
 2.    Orbital velocity of a satellite is?a) None of these b) (MG/R)1/2c) Both of thesed) (gR)1/2
 3.    Apparent weight may be?a) Zero b) Greater than real weightc) Equal to real weightd) All of these
 4.    A body moving along a circular path completing two revolutions, if the radius of the circular path is the ratio of displacement to the covered path will be?a) 2piR b) pi Rc) Zerod) 4piR
 5.    A satellite whose position does not change w.r.t a certain pint on earth is called?a) Orbital satellite b) Spinning satellitec) None of thesed) Constant satellite
 6. When a wheel,1m in diameter makes 30rev/min.,the linear speed on its rim in ms-1is?a) 4pi b) 2pic) pi/2d) 3pi/3
 7.    A body can have constant velocity when it follows a?a) Elliptical path b) Parabolic pathc) Circular pathd) Rectilinear path
 8. The angular speed for daily rotation of earth in rads-1 is?a) 2pi b) pic) 12pid) 4pi
 9.    In angular motion Newton’s second law of motion is?a) F=delta p/delta t b) F=arc) None of thesed) F=ma
 10.    Weightlessness is observed only by observer?a) Inside the lift b) Outside the liftc) Wherever it isd) All of these
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