(a) Shift towards F-axis (b) Shift towards X-axis (c) Remain as it is (d) Become double in length Answer: a (12)
(a) 10 J (b) 20 J (c) 30 J (d) 40 J Answer: a (18)
The force acting on the particle is zero at (a) C (b) B (c) B and C (d) A and D Answer: c (28)
The body is in stable equilibrium at (a) x=x1 (b) x=x2 (c) both x1 and x2 (d) neither x1 nor x2 Answer: b (11)
(a) R/4 (b) 3R/4 (c) R (d) R/8 Answer:c (13)
(a) 4.9 m/s 2 (b) 2.45 m/s 2 (c) 1.4 m/s 2 (d) …
Answer: d (55)
(a) 7g/8 , g/8 (b) 21g/8 , g/8 (c) 21g/8, g/5 (d) 12g/5, g/5 Ans. d (7)
(a) 4.5 J (b) 13.5 J (c) 9.0 J (d) 18.0 J Answer: b (8)
(a) FL/x (b) F(L-x)/L (c) FL/L-x (d) Fx/L-x Ans. b (5)
(a) A to B (b) B to C (c) C to D (d) D to E Answer: a (8)
(a) 16 J (b) 32 J (c) 1.6 J (d) 8 J Answer: a (25)
(a) 3 N, 4 N, 5 N (b) 4N, 5 N, 10 N (c) 30N, 40 N, 80 N (d) 1N, 3 N, 5 N Ans. a (8)
(a) 0 m/s (b) 20 √2 m/s (c) 20 √3 m/s (d) 40 m/s Answer:d (7)
(a) 50 J (b) 40 J (c) 20 J (d) 10 J Answer:d (5)
(a) 12 N, 6 N (b) 13 N, 5N (c) 10 N, 8 N (d) 16 N, 2 N Ans. b (5)
(a) F1 3N, F2 = 5N, F3 = 9N (b) F1 3N, F2 = 5N, F3 = 9N (c) F1 3N, F2 = 5N, F3 = 9N (d) F1 3N, F2 = 5N, F3 = 6N Ans. d (18)
(a) 20 ergs (b) 60 ergs (c) 70 ergs (d) 700 ergs Answer: a (9)
(a) 0.1 kg/cm (b) 5 kg/cm (c) 0.3 kg/cm (d) 1 kg/cm Answer: a (7)
(a) 12 N (b) 8 N (c) 4 N (d) 5 N Ans. c (12)
(a) North-East (b) South (c) South-West (d) West Ans. c (36)
(a) -2π newton×second (b) Zero newton×second (c) +4π newton×second (d) -6π newton×second Answer: b (10)
(a) Vertical component of the thrust created by air currents striking the lower surface of the wings (b) Force due to reaction of gases ejected by the revolving propeller (c) Upthrust of the air which will be equal to the …
(a) There is no force acting on it (b) The force acting on it is not in contact with it (c) The combination of forces acting on it balances each other (d) The body is in vacuum Ans . c …
(a) 8×10-2 joules (b) 16×10-2 joules (c) 4 ×10-4 joules (d) 1.6 ×10-3 joules Answer: A (21)
(a) 45° (b) 120° (c) 150° (d) 60° Ans . b (8)
(a) 50 J (b) 25 J (c) 287.5 J (d) 200 J Answer:c (15)
(a) c0s -1 (-17/18) (b) cos -1 (-1/3) (c) cos -1 (2/3) (d) cos (8/9) Ans. a (61)
(a) ymax=20m (b) ymax= 15m (c) ymax= 11m (d) ymax = 5m Answer: C (14)
(a) Conservation of mass (b) Conservation of energy (c) Conservation of linear momentum (d) Conservation of angular momentum Ans. c (13)
a) It is lighter than air (b) Of gravitational pull of the sun (c) It has a fan which displaces more air per unit time than the weight of the rocket (d) Of the force exerted on the rocket by …
(a) 0.05 m/s (b) 5 m/s (c) 50 m/s (d) 500 m/s Ans. d (3)