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4G 0.0KB/s Ys l Vo 10:23 AM +91 98499 04135 Yesterday, 8:51 pm ICS OBJECTIVE PHYSICS IAd A vector is not changed if VECTORS 3. ) It is slid parallel to itself 2) It is cross multiplied by a unit vector 3) It is rotated through an arbitrary angle 4) It is multiplied by a scalar iang phy jr valu practice sheet 4. If B-nA and A is anti parallel with B. then n is: 1) a vector 2) negative and dimension less 3) a scalar 4) a negative scalar 5. The angle between a and is 0 then angle between 2a and-3b is 1) R/3 Which of the following are vector quantities 1) Temperature Which quality can be added with a velocity vector? 2) m 3) /6 4) none of these (6. 2) Moment of force 3) vector + vector 4) Electric current 7. 1) Displacement Choose the wrong statements 2) Time 3) Speed 4) None of these 8. Vector 1) Scalar + Vector scalar (or) vector 2) Vector scalar Scalar 3) Vector scalar (or) vector 4) Vector - Vector vector 9. Which of the following sets of forces acting simultaneously on a particle keep it in equilibrium? 1) 3N, 5N, 10N 2) 4N, 7N, 12N 3) 2N, 6N, 5N 4) 5N, 8N, IN 10. A person runs along a circular path of radius 5 m. If he completes half of the circle. Find the magnitude of the displacement vetor, How far the person ran ? 1) 10m, 5 tm 2) 5 tm 3) 5tm, 19m 4) 14m, 10 tm I1 A car makes a displacement of 100 m towards east and then 200 m towards north. Find the magnitude and direction of the resultant 1) 223.7m, tan (2), N of E 3) 300m, tan (2). N of E 2) 223.7m, tan (2), E of N 4) 100m, tan (2). N of E 12 Maximum and minimum magnitudes of the resultant of two vectors of magni udes P and Q are found to be in the ratio 3: 1. Which of the following relations is true ? 1) P-Q 2) P 20 3) P = 4Q 4) P- Q3 13 The resultant of two forces 2P and P is 10 P. The angle between the forces is 3) 45 4) 90 1) 30 2) 60 14. If P+Q =R and p-O=S. then R2+s is equal to 1) P+Q 2) 2(P Q) 3) 2(P+Q) 4) 4 PQ 15. Two forces are such that the sum of their magnitudes is 18N, the resultant is 228 when they are at 120. Then the magnitude of the forces are 1) 12N, 6N 3) 1ON, 9N 4) 16N, 2N 2) 13N, 5N 51 ELITE SERIES for Sri Chaitanya Jr. ICON Students