(a) 5/7 g sinθ (b) 2/3 g sinθ (c) 1/2 g sinθ (d) 3/5 g sinθ Ans. b (16)
(a) (1/2)Mv2 (b) (1/2) (c) (3/4)Mv2 (d) (3/4)Iω2 Ans. c (15)
a. Nylon- 6, 6 b. Nylon- 2- nylon – 6 c. Melamine polymer d. Nylon – 6 Ans. d (14)
(a) 22 km/sec (b) 11 km/s (c) 5.5 km/sec (d) 15.5 km/sec Answer: a (6)
(a) 5.29 m/sec (b) 4.1 × 103 m/sec (c) 51 m/sec (d) 51 cm/sec Ans. a (62)
(a) Iω2 (b) (3/2) Iω2 (c) 2Iω2 (d) (1/2)Iω2 Ans. b (46)
a. Bakelite b. Glyptal c. Polypropene d. Poly vinyl chloride Ans. b (7)
(a) 2 : 1 (b) 1 : 2 (c) 1 : 1 (d) 4 : 1 Ans. c (12)
(a) 2 (b) √ 2 (c) 1/√2 (d) √3 Answer: b (7)
(a) Ring (b) Disc (c) Solid sphere (d) Solid cylinder Ans. a (42)
(a) m2 (b) m (c) m0 (d) m-1 Answer: c (7)
(a) 11.2 m/sec (b) 112 km/sec (c) 11.2 km/sec (d) 11200 km/sec Answer: c (9)
(a) 3 : 2 (b) 2 : 3 (c) √3:√2 (d) √2:√3 Ans. b (13)
(a) Ring, shell, disc, sphere (b) Shell, sphere, disc, ring (c) Sphere, disc, shell, ring (d) Ring, sphere, disc, shell Ans.c (16)
Column I Column II A. High density polythene (i) Peroxide catalyst B. Polyacrylonitrile …
(a) Solid sphere and solid cylinder (b) Solid cylinder and disc (c) Disc and ring (d) Solid sphere and ring Ans. b (29)
(a) t∝L (b) t∝1/L (c) t∝L2 (d) t∝1/L2 Ans. a (27)
a. Buna – S b. Nylon 6, 6 c. Teflon d. Neoprene Ans. b (5)
a. HOOC(CH 2 )4 COOH, and H2 N (CH 2 ) 6 NH2 b. HOOC(CH 2 )6 COOH, and H2 N (CH 2 )4 NH2 c. HOOC(CH 2 )6 COOH, and H2 N (CH 2 )6 NH2 d. HOOC(CH 2 )4 COOH, and H2 N (CH 2 )4 NH2 Ans. a (18)
(a) A cylinder of same mass but of smaller radius (b) A cylinder of same mass but of larger radius (c) A cylinder of same radius but of smaller mass (d) A hollow cylinder of same mass and same radius …
a. Polythene b. Butyl rubber c. Polystyrene d. Melamine polymer Ans. d (7)
(a) I and II (b) II and IV (c) I and IV (d) I, III and IV Answer: c (4)
a. Tough b. Hard c. Poor conductor of electricity d. Highly branched structure Ans. d (8)
(a) Infinity (b) √2 gR (c) 2√gR (d) Zero Answer: b (7)
a. Methanoic acid b. Ethanoic acid c. Propanoic acid d. Butanoic acid Ans. b (10)
a. (i) > (ii) > (iii) b. (ii) > (iii) > (i) c. (ii) <(iii) <(i) d. (iii) <(i) <(ii) Ans. c (4)
a. Acetic acid b. Glycerol c. Starch d. Cellulose Ans. d (9)
(a) 1/4 (GMm /R) (b) 1/6 ( (GMm /R) (c) 2/3 (GMm /R) (d) 1/3 (GMm /R) Answer: b (41)
(a) √(10/7 gh) (b) √(gh) (c) √(6/5 gh) (d) √(4/3 gh) Ans. a (7)
a. Nylon – 66 b. Nylon c. Terylene d. SBR Ans. c (7)
(a) The solid cylinder (b) The hollow cylinder (c) Both will reach the bottom together (d) The greater density Ans. a (7)
a. Nylon – 66 b.Protein c. Glyptal d. Nylon -6 Ans. c (7)
(a) Must be variable (b) Must be constant (c) Cannot be zero (d) Must be zero Answer: b (10)
a. Guttapercha b. Hydrochloride rubber c. Buna – N d. Synthetic rubber Ans. a (6)
(a) √(2gh) (b) √(4/3 gh) (c) √(3/4 gh) (d) √(4g/h) Ans. b (3)
(a) 1/R (b) 1 /√R (c) R …