Physics
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Jun 7, 2022
of 00 angle of contact (a) Plane (b) Parabolic (c) Semi-spherical (d) Cylindrical Ans. c (11)
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Jun 7, 2022
(a) 0° (b) 900 (c) 450 (d) 330 Ans. a (35)
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Jun 7, 2022
(a) Greater than (b) Less than 90° (c) Equal to 90° (d) Equal to 0° Ans. a (4)
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Jun 7, 2022
(a) Increase (b) Remain unchanged (c) Increase or decrease (d) Decrease Ans. b (7)
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Jun 7, 2022
ρ in a vertical plane with its base on the surface of the liquid. The thrust on the lamina is...
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Jun 7, 2022
(a) ρ= ρ0 [1+ (λd θ)] (b) ρ= ρ0 [1- (λd...
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Jun 7, 2022
(a) r (b) r2 (c) r-1 (d) r-2 Ans. c (8)
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Jun 7, 2022
ρ of water of bulk modulus B at a depth y in the ocean is related to the density at surface...
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Jun 7, 2022
r1 and r2(r2>r1) coalesce, the radius of curvature of common surface is (a) r2-r1 (b) r2-r1/r1r2 (c) r1r2/ r2-r1 (d)...
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Jun 7, 2022
ρ1 and ρ2 are mixed, then density of mixture is given by (a) ρ= (ρ1 + ρ2) /2 ...
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Jun 7, 2022
25 x 10-3 Nm-1 . The excess pressure inside a soap bubble of diameter 1 cm is (a) 10...
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Jun 7, 2022
(a) 100 dyne/cm (b) 68.66 dyne/cm (c) 137 dyne/cm (d) 150 dyne/cm Ans. b (51)
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Jun 7, 2022
(a) Less than 40 N/m2 (b) Greater than 40 N/m2 (c) Less than 20 N/m2 (d) Greater than 20 N/m2...
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Jun 7, 2022
(a) 2T/r (b) 4T/r (c) T/2r (d) T/r Ans. b (6)
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Jun 7, 2022
(a) H (b) 2H (c) 7H (d) 8H Ans. c (3)
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Jun 7, 2022
A, B and C prepared by blowing the capillary tube fitted with stop cocks, S1, S2 and S3. With stop...
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Jun 7, 2022
are r1 and r2. In isothermal conditions, two meet together in vaccum. Then the radius of the resultant bubble is...
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Jun 7, 2022
(a)(S/r) cos θ (b) (2S/r) cos θ (c) S/r cos θ (d) 2S/r cos θ Ans. b (8)
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Jun 7, 2022
(a) 102 : 101 (b) (102)3 : (101)3 (c) 8 : 1 (d) 2 : 1 Ans. c (27)
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Jun 7, 2022
(a) 1 : 64 (b) 1 : 4 (c) 64 : 1 (d) 1 : 2 Ans. a (9)
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Jun 7, 2022
(a) 5 m (b) 10 m (c) 15 m (d) 20 m Ans. c (13)
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Jun 7, 2022
(a) 2.3 cm (b) 4.5 cm (c) 5 cm (d) 7 cm Ans. c (41)
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Jun 7, 2022
(a) The pressure on the bottom of tank (a) is greater than at the bottom of (b). (b) The pressure...
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Jun 7, 2022
(a) Increase on sides (b) Increase downwards (c) Increase in all directions (d) Never increases Answer-c (6)
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Jun 7, 2022
water is 70 x 10-3 N/m difference of pressures between inside and out side of the spherical drop is (a) ...
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Jun 7, 2022
(a) Metal is 3 (b) Metal is 7 (c) Liquid is 3 ...
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Jun 7, 2022
(a) 6 × 5 × 5 × 5 gf (b) 4 × 4 × 4 × 7 gf (c) 5...
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Jun 7, 2022
(a) It will slowly come back to its earlier position (b) It will remain submerged, where it is left (c) ...
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Jun 7, 2022
(a) Acute (b) Obtuse (c) Zero (d) 900 Ans. b (9)
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Jun 7, 2022
(a) 0° (b) 30o (c) 90o (d) 135o Ans. d (6)
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Jun 7, 2022
(a) Increases (b) Decreases (c) Remains the same (d) First increases and then decreases Ans. b (8)
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Jun 7, 2022
(a) Convex (b) Concave (c) Plane (d) Uncertain Ans. a (4)
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Jun 7, 2022
(a) Zero (b) Obtuse (More than 90°) (c) Acute (Less than 90°) (d) 90° Ans. b (9)
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Jun 7, 2022
(a) 1 : 3 (b) 1 : 9 (c) 27 : 1 (d) 1 : 27 Ans. d (5)
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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
η ( > 1) times lighter than water is suspended in a water tank by a string tied to its base...
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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...