Ajneesh
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Jun 7, 2022
(a) The internal pressure of the bubble is always greater than external pressure (b) The internal pressure of the bubble...
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Jun 7, 2022
(a) 3.9 N/m (b) 3.9 ×10–2 N/m (c) 3.9 ×10–3 N/m (d) 3.9 dyne/m Ans. b (5)
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Jun 7, 2022
(a) Internal pressure of the smaller bubble is higher than the internal pressure of the larger bubble (b) Pressure of...
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Jun 7, 2022
(a) The size of A will increase (b) The size of B will increase (c) The size of B will...
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Jun 7, 2022
r1 and r2 equal to 4 cm and 5 cm are touching each other over a common surface s1s2 (shown...
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Jun 7, 2022
radius 0.1 mm situated just below the surface of water will be equal to [Take surface tension of water 70...
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Jun 7, 2022
(a) Equal to atmospheric (b) Equal to upper side pressure (c) More than upper side pressure (d) Lesser than upper...
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Jun 7, 2022
(a) Acceleration due to gravity (b) Height of the liquid column (c) Area of the bottom surface (d) Nature of...
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Jun 7, 2022
(a) 1 : 4 (b) 4 : 1 (c) 16 : 1 (d) 1 : 16 Ans. a (7)
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Jun 7, 2022
(a) 10m (b) 20m (c) 60m (d) 30m Ans. b (4)
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Jun 7, 2022
(a) More in the big drop (b) More in the small drop (c) Equal in both drops (d) There is...
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Jun 7, 2022
(a) 4T/ ρrg (b) 3T/ρrg (c) 2T/ρrg (d) T/ρrg Ans. c (7)
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Jun 7, 2022
(a) The soap film consists of two surface layers of molecules back to back (b) The bubble encloses air inside...
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Jun 7, 2022
(a) 4h (b) 3h (c) 2h (d) h Ans. c (5)
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Jun 7, 2022
(a) Due to surface tension of the oil (b) The wick attracts the kerosene oil (c) Of the diffusion of...
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Jun 7, 2022
(a) 1 mm (b) 3 mm (c) 6 mm (d) 9 mm Ans. d (11)
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Jun 7, 2022
(a) Pressure below the meniscus is less than atmospheric pressure (b) Pressure below the meniscus is more than atmospheric pressure...
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Jun 7, 2022
(a) Air flows from larger bubble into the smaller one (b) The size of the bubbles remains the same (c) ...
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Jun 7, 2022
(a) ρg/2hr (b) 2/hrρg (c) rρg/2h (d) hrρg/2 Ans. d (14)
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Jun 7, 2022
(a) 10 cm (b) 20 cm (c) 30 cm (d) Zero Ans. c (4)
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Jun 7, 2022
2×10-3m . A liquid of weight 6.28 x 10-4 N may remain in the capillary then the surface tension of...
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Jun 7, 2022
(a) Water rise is more in A than B (b) Water rises more in B than A (c) Same water...
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Jun 7, 2022
the diameter of capillary tube (Surface tension of water = 7.2 ×10–2 N/m) (a) 9.6×10–4 m (b) 9.6×10–3 m (c) ...
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Jun 7, 2022
When a capillary is dipped in water, water rises 0.015 m in it. If the surface tension of water is...
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Jun 7, 2022
each in two liquids whose relative densities are 0.8 and 0.6 and surface tensions are 60 and 50 dyne/cm respectively...
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Jun 7, 2022
(a) 2.0 cm (b) 4.0 cm (c) 4/√3 cm (d) 2√2 cm Ans. b (5)
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Jun 7, 2022
(a) 9cm (b) 6cm (c) 3cm (d) 2cm Ans. b (71)
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Jun 7, 2022
If the surface tension of water is 0.06 Nm-1, then the capillary rise in a tube of diameter 1 mm...
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Jun 7, 2022
(a) Water flows out continuously from the upper end (b) Water rises upto upper end and forms a spherical surface...
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Jun 7, 2022
(a) Glass and liquid (b) Air and glass (c) Air and liquid (d) All of Ans. c (12)
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Jun 7, 2022
(a) Gravity flow (b) Diffusion of fluid (c) Capillary action (d) Osmosis of liquid Ans. c (17)
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Jun 7, 2022
(a) r= 2T cos θ/hdg (b) r= hdg/2T cos θ (c) r= 2T dgh/cos θ (d) r= T cos θ/2hdg...
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Jun 7, 2022
(a) On sun (b) On poles (c) In a lift going upward with acceleration (d) In a lift going downward...
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Jun 7, 2022
(a) 1.2 mm (b) 2.4 mm (c) 0.6 mm (d) 0.4 mm Ans. b (7)
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Jun 7, 2022
(a) Twice (b) Half (c) Same as earlier (d) None of these Ans. b (17)
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Jun 7, 2022
(a) r= 2T/hdg (b) r= T/hdg (c) r= Tg/hd (d) None of these Ans. a (8)
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Jun 7, 2022
(a) Increase (b) Decrease (c) Unchanged (d) None of these Ans. a (15)
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Jun 7, 2022
(a) 6h (b) 1/6 h (c) h (d) Zero Ans. a (59)
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Jun 7, 2022
(a) Zero (b) l+h (c) 2h (d) h Ans. d (36)