[{"id":158516,"question":"If a=5j + 2j,b=2i -3j, then|a+2b|=","choices":[{"text":"√21","value":"A"},{"text":"√97","value":"B"},{"text":"√39","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":158515,"question":"I f a =5i + 2j, then|a| =","choices":[{"text":"√13","value":"A"},{"text":"√7","value":"B"},{"text":"1/√13","value":"C"},{"text":"√29","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":158514,"question":"If m and n be two scalars, then (m+n) g =","choices":[{"text":"0","value":"A"},{"text":"m+n<img width=\"9\" height=\"20\" src=\"file:///C:/Users/Softsol/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png\" v:shapes=\"_x0000_i1025\"><p class=\"MsoNormal\"><!--[endif]--><o:p></o:p></p>","value":"B"},{"text":"m▁a+n▁a","value":"C"},{"text":"ma - m▁a<p class=\"MsoNormal\"><!--[endif]--><o:p></o:p></p>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":158513,"question":"If G is the centroid of the triangle, then GA +GB+GC=","choices":[{"text":"0","value":"A"},{"text":"1","value":"B"},{"text":"-1","value":"C"},{"text":"3","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":158512,"question":"The modulus of 12-5i is:","choices":[{"text":"7","value":"A"},{"text":"13","value":"B"},{"text":"√7","value":"C"},{"text":"119","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":158511,"question":"The magnitude of vector a=i-3j+5k is:","choices":[{"text":"3","value":"A"},{"text":"√35","value":"B"},{"text":"√17","value":"C"},{"text":"√35","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":158510,"question":"The magnitude of vector a 2i-7j is","choices":[{"text":"√23","value":"A"},{"text":"√43","value":"B"},{"text":"3","value":"C"},{"text":"√53","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":158509,"question":"a ______quantity is one that possesses both magnitude and direction.","choices":[{"text":"Scalar","value":"A"},{"text":"Vector","value":"B"},{"text":"Segment","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":158508,"question":"If u = xi + yj, then|u|","choices":[{"text":"x<sup>2</sup> + y<sup>2</sup>","value":"A"},{"text":"(x<sup>2</sup> +y<sup>2</sup>)<sup>2</sup>","value":"B"},{"text":"x<sup>2</sup>-y<sup>2</sup>","value":"C"},{"text":"√(x<sup>2</sup>+y<sup>2</sup>)","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":158507,"question":"The locus of the centre of a circle which touches two given circles externally is:","choices":[{"text":"a hyperbola","value":"A"},{"text":"an ellipse","value":"B"},{"text":"a circle","value":"C"},{"text":"a parabola","value":"D"},{"value":"E"}],"correctAnswer":1}]