(a) Different stresses and strains (b) The same stress and strain (c) The same strain but different stresses (d) The same stress but different strains Answer-d (11)
(a) Stress (b) Strain (c) Young’s modulus of elasticity (d) Pressure Answer-b (5)
(a) Rubber (b) Glass (c) Steel (d) Copper Answer-c (9)
a. If both assertion and reason are true and the reason is the correct explanation of the assertion. b. If both assertion and reason are true but reason is not the correct explanation of the assertion. c. if assertion is …
a. If both assertion and reason are true and the reason is the correct explanation of the assertion. b. If both assertion and reason are true but reason is not the correct explanation of the assertion. c. if assertion is …
a. If both assertion and reason are true and the reason is the correct explanation of the assertion. b. If both assertion and reason are true but reason is not the correct explanation of the assertion. c. if assertion is …
(a) Chlorophyceae (b) Phaeophyceae (c) Rhodophyceae (d) Both (b) and (c) Ans. c (10)
(a) Vaucheria (b) Chara (c) Nostoc (d) Polysiphonia Ans. a (34)
(a) Gigartina (b) Gelidium (c) Gracillaria (d) All the above Ans. d (7)
(a) 2.8 km/s (b) 15.6 km/s (c) 22.4 km/s (d) 44.8 km/s Answer: c (12)
(a) Polysiphonia (b) Postelsia (c) Ectocarpus (d) Macrocystis Ans. b (13)
(a) Chlorophyceae (b) Myxophyceae (c) Rhodophyceae (d) Phaeophyceae Ans. b (7)
(a) Type of pigment (b) Nature of cell wall material (c) Nature of reserve food (d) All the above Ans. d (7)
(a) Fritsch (b) Papenfus (c) Smith (d) Morris Ans. a (3)
(a) Prof. M.O.P. Iyenger (b) Prof. J.N. Mishra (c) Prof. R.R. Mishra (d) Prof. R.N. Singh Ans. a (9)
(a) Is less than that on the moon (b) Depends upon the mass of the body (c) Depends upon the direction of projection (d) Depends upon the height from which it is projected Answer: d (5)
a. Butadiene only b. Butadiene and styrene c. Sturene only d. Butadiene nitryl Ans. b (15)
a. Ethylene- propylene copolymer b. Vulcanised rubber c. Polypropylene d. Polybutylene Ans. a (6)
a. Polropene b. Natural rubber c. Synthetic rubber d. Highly vulcanized rubber Ans. d (7)
a. It is plastic in nature b. It has little durability c. It has large water-absorption capacity d. All of these Ans. d (8)
a. 05% b. 03% c. 30% d. 55.0% Ans. a (7)
a. All cis- configuration b. All trans-configuration c. Alternate cis – and trans-configuration d. Random cis-and trans-configuration Ans. a (8)
a. SF6 b. CF4 c. Cl2 F2 d. C2 F2 Ans. a (14)
a. Neoprene b. Chloroprene c. Glyptal d. Nylon Ans. a (8)
a. Neoprene b. Isoprene c. Chloroprene d. Butadiene Ans. b (7)
a. Galvanisation b. Vulcanisation c. Bessemerisation d. Sulphonation Ans. b (11)
(a) 4mg/M+2m (b) 4mg/M+4m (c) 2mg/M+m (d) 2mg/M+2m Ans. b (19)
(a) Mg/M+2m (b) 2Mg/m+2M (c) Mg/2M+m (d) 2mg/M+2m Ans. d (82)
(a) √(2gh) (b) √(2gh)M/m (c) √(2ghm/M) (d) √(4mgh/2m+M) Ans. d (63)
(a) Does not depend on the mass of the rocket (b) Does not depend on the mass of the earth (c) Depends on the mass of the planet towards which it is moving (d) Depends on the mass of the …
(a) 2 ve (b) 3 ve (c) 4 ve (d) None of these Answer: a (6)
a. propene b. Vinyl chloride c. Chloroprene d. Butadiene Ans.c (5)
(a) ve ∝ pR (b) ve ∝√pR (c) ve ∝ (√p/R) (d) ve ∝ (1/√pR) Answer: b (4)
(a) 112 km/s (b) 11.2 km/s (c) 1.12 km/s (d) 3.7 km/s Answer: a (4)