[{"id":146003,"question":"The velocity of a particle at an instant is 10 m/s and after 5s the velocity of the particle is 20 m/s. The velocity 3s before in m/s is:","choices":[{"text":"8","value":"A"},{"text":"4","value":"B"},{"text":"6","value":"C"},{"text":"7","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":146002,"question":"To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined","choices":[{"text":"Parallel","value":"A"},{"text":"Antiparallel","value":"B"},{"text":"At angle 60<b style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;\">°</b>","value":"C"},{"text":"Perpendicular to each other","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":146001,"question":"The dot product of two vectors is negative when","choices":[{"text":"They are parallel vectors","value":"A"},{"text":"They are anti-parallel vectors","value":"B"},{"text":"They are perpendicular vectors","value":"C"},{"text":"None of the above is correct","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":146000,"question":"If the dot product of two non-zero vectors vanishes, the vectors will be","choices":[{"text":"In the same direction","value":"A"},{"text":"Opposite to each other","value":"B"},{"text":"Perpendicular to each other","value":"C"},{"text":"Zero","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":145999,"question":"Two forces of 10N and 15N are acting simultaneously on an object in the same direction. Their resultant is","choices":[{"text":"Zero","value":"A"},{"text":"5N","value":"B"},{"text":"25N","value":"C"},{"text":"150N","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":145998,"question":"Two forces are acting together on an object. The magnitude of their resultant is minimum when the angle between the force is","choices":[{"text":"0<b style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;\">°</b>","value":"A"},{"text":"60<b style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;\">°</b>","value":"B"},{"text":"120<b style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;\">°</b>","value":"C"},{"text":"180<b style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;\">°</b>","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":145997,"question":"A force of 10N is acting along y-axis. Its component along x-axis is","choices":[{"text":"10N","value":"A"},{"text":"20N","value":"B"},{"text":"100N","value":"C"},{"text":"Zero N","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":145991,"question":"The angle between rectangular components of a vector is","choices":[{"text":"0<b style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;\">°</b>","value":"A"},{"text":"60<b style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;\">°</b>","value":"B"},{"text":"90<b style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;\">°</b>","value":"C"},{"text":"120<b style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;\">°</b>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":145989,"question":"Which of the following lists of physical quantities consists only of vectors:","choices":[{"text":"Time, temperature, velocity","value":"A"},{"text":"Force, volume, momentum","value":"B"},{"text":"Velocity, acceleration, mass","value":"C"},{"text":"Force, acceleration, velocity","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":145987,"question":"Which of the following is the only vector quantity?","choices":[{"text":"Temperature","value":"A"},{"text":"Energy","value":"B"},{"text":"Power","value":"C"},{"text":"Momentum","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":145985,"question":"Which of the following is a scalar quantity?","choices":[{"text":"Density","value":"A"},{"text":"Displacement","value":"B"},{"text":"Torque","value":"C"},{"text":"Weight","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":145984,"question":"The volt/metre is the unit of:","choices":[{"text":"Potential","value":"A"},{"text":"Work","value":"B"},{"text":"Force","value":"C"},{"text":"Electric field intensity","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":145982,"question":"The sieman is the SI unit of","choices":[{"text":"Resistance","value":"A"},{"text":"Specific Resistance","value":"B"},{"text":"Conductance","value":"C"},{"text":"Inductance","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":145981,"question":"The motion without consideration of its cause is studied in","choices":[{"text":"Kinematics","value":"A"},{"text":"Mechanics","value":"B"},{"text":"Statics","value":"C"},{"text":"Modern Physics","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":145979,"question":"The unit of inductance is equivalent to","choices":[{"text":"V x s/A","value":"A"},{"text":"V x A/s","value":"B"},{"text":"A x s/v","value":"C"},{"text":"V/A x s","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":145977,"question":"The percentage errors in the measurements of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimate of the kinetic energy obtained by measuring mass and speed","choices":[{"text":"11%","value":"A"},{"text":"8%","value":"B"},{"text":"5%","value":"C"},{"text":"1%","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":145975,"question":"The dimensional formula of torque is:","choices":[{"text":"[ML<sup>2</sup>T<sup>-2</sup>]","value":"A"},{"text":"{MLT<sup>-2</sup>]","value":"B"},{"text":"[ML<sup>-1</sup>T<sup>-2</sup>]","value":"C"},{"text":"[ML<sup>-2</sup>T<sup>-2</sup>]","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":145973,"question":"Planck's constant has the dimensions of:","choices":[{"text":"Energy","value":"A"},{"text":"Momentum","value":"B"},{"text":"Frequency","value":"C"},{"text":"Angular momentum","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":145971,"question":"The fundamental unit which has same power in the dimensional formula of surface tension and viscosity is:","choices":[{"text":"Mass","value":"A"},{"text":"Length","value":"B"},{"text":"Time","value":"C"},{"text":"None","value":"D"},{"value":"E"}],"correctAnswer":1}]