2022
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Jun 6, 2022
(a) Increased kinetic energy (b) Increased potential energy (c) Decreased kinetic energy (d) Decreased potential energy Answer-b (14)
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Jun 6, 2022
(a) 75 joule (b) 60 joule (c) 50 joule (d) 100 joule Answer-a (7)
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Jun 6, 2022
AgNO3 what amount of AgNO3 should be added in 60 mL of solution a. 1.8 b. 0.8 c. 0.18 d....
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Jun 6, 2022
25. The work per unit volume to stretch the length by 1% of a wire with cross sectional area of ...
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Jun 6, 2022
a. 1.0 M b. 10-2 M c. 10-3 M d. 10 -4 M Ans. b (4)
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Jun 6, 2022
(a) Increase (b) Decrease (c) Remain unchanged (d) None of the above Ans. a (42)
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Jun 6, 2022
24.A wire of length 50 cm and cross sectional area of 1 sq. mm is extended by 1 mm. The...
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Jun 6, 2022
(a) Attraction (b) Repulsion (c) Attraction or repulsion (d) None of the above Ans. a (3)
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Jun 6, 2022
20.K is the force constant of a spring. The work done in increasing its extension from l1 to l2 will...
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Jun 6, 2022
(a) Cohesive force of oil>> adhesive force between oil and glass (b) Cohesive force of oil > cohesive force of...
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Jun 6, 2022
(a) 2 TL (b) 4 TL (c) 8 TL (d) 10 TL Ans. (c) Force on each side =2TL (due...
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Jun 6, 2022
19.When a force is applied on a wire of uniform cross-sectional area 3×10-6 m2 and length 4m, the increase in...
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Jun 6, 2022
a. 1.20 M b. 1.50M c. 1.344 M d. 2.70 M Ans. c (19)
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Jun 6, 2022
(a) Increases with area (b) Decreases with area (c) Increase with temperature (d) Decrease with temperature Ans. d (8)
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Jun 6, 2022
H2 SO4 (36N) with 50mL of water is a. 36M b. 18M c. 9M d. 6M Ans. c Explanation :...
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Jun 6, 2022
(a) Solids, liquids and gases (b) Liquids (c) Gases (d) Matter Ans. b (8)
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Jun 6, 2022
a. 0.5 b. 1.0 c. 2.0 d. 0.1 Ans. a (9)
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Jun 6, 2022
Na2 CO3 present in 250 mL of 0.25 M solution is a. 6.225g b. 66.25 g c. 6.0 g d....
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Jun 6, 2022
(a) 30 dynes (b) 60 dynes (c) 750 dynes (d) 750 π dynes Ans. d (47)
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Jun 6, 2022
(a) Y×(Strain2/Volume) (b) Stress × Strain × Volume (c) (Stress2×Volume) / (2Y) (d) (1/Y) × Stress × Strain × Volume Answer-c (12)
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Jun 6, 2022
(a) Only on the cohesive force of liquid molecules (b) Only on the adhesive force between the molecules of glass...
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Jun 6, 2022
(a) Dancing of a camphor piece over the surface of water (b) Small mercury drop itself becomes spherical (c) A...
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Jun 6, 2022
(a) C.F. for water > A.F. for water and oil (b) C.F. for oil > A.F. for water and oil (c) C.F. for...
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Jun 6, 2022
21. When a 4 kg mass is hung vertically on a light spring that obeys Hooke’s law, the spring stretches...
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Jun 6, 2022
The gas with the highest value of Hnery’s law constant is a. G4 b. G2 c. G3 d. G1 Ans....
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Jun 6, 2022
(a) Force of attraction between hair (b) Surface tension (c) Viscosity of water (d) Characteristic property of hairs Ans. b...
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Jun 3, 2022
(a) water is absorbed by the coating (b) Cohesive force becomes greater (c) Water is not scattered away by the...
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Jun 3, 2022
(a) Surface tension (b) Less weight (c) Upthrust of liquid (d) None of the above Ans. a (13)
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Jun 3, 2022
D2 O a. Boiling point is higher than H2 O b. D2 O reacts slowly than H2 O c. Viscosity...
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Jun 3, 2022
a. N2 b. He c. H2 d. CO2 e. O2 Ans. d Explanation : As the solubility increases value of...
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Jun 3, 2022
(a) Fl/2AL ...
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Jun 3, 2022
KNO3 in water is shown below The amount of KNO3 that dissolves in 50g of water at 40° C is...
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Jun 3, 2022
(a) Force of surface tension is equal and opposite to the force of gravity (b) Force of surface tension predominates...
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Jun 3, 2022
(a) Elastic membrane is formed on water due to property of surface tension (b) Spiders and insects are lighter (c) Spiders...
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Jun 3, 2022
(a) Increase in the saturated vapour pressure of water (b) Root mean square velocity of air molecules inside the bubble...
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Jun 3, 2022
(a) 0°C (b) 277 K (c) 370°C (d) Slightly less than 647 K Ans. c,d (14)