CBSE Class 11 Physics Chapter 10 Mechanical Properties of Fluids Multiple Choice Questions with Answers. MCQ Questions Class 11 Physics Mechanical Properties of Fluids with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Physics Mechanical Properties of Fluids MCQs with Answers to know their preparation level.
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MCQ Questions Class 11 Physics Mechanical Properties of Fluids with Answers - Set - 4
Question 1:
The constant velocity attained by a body while falling through a viscous medium is termed as
(a) critical velocity
(b) terminal velocity
(c) threshold velocity
(d) None of these
Correct Answer – (B)
Question 2 :
The wettability of a surface by a liquid depends primarily on
(a) density
(b) angle of contact between the surface and the liquid
(c) viscosity
(d) surface tension.
Correct Answer – (B)
Question 3 :
Three liquids of densities r1, r2 and r3 (with r1 > r2 > r3), having the same value of surface tension T, rise to the same height in three identical capillaries. The angles of contact q1, q2 and q3 obey
(a) p/2 > q1 > q2>q3 ≥ 0
(b) 0 ≤ q1 < q2 < q3 < p/2
(c) p/2 < q1 < q2 < q3 < p
(d) p > q1 > q2 > q3 > p/2
Correct Answer – (B)
Question 4 :
A water tank of height 10m, completely filled with water is placed on a level ground. It has two holes one at 3 m and the other at 7 m from its base. The water ejecting from
(a) both the holes will fall at the same spot
(b) upper hole will fall farther than that from the lower hole
(c) upper hole will fall closer than that from the lower hole
(d) more information is required
Correct Answer – (A)
Question 5 :
The lift of an air plane is based on
(a) Torricelli’s theorem
(b) Bernoulli’s theorem
(c) Law of gravitation
(d) Conservation of linear momentum
Correct Answer – (B)
MCQ Questions Class 11 Physics Mechanical Properties of Fluids with Answers
Question 6 :
A small ball (menu) falling under graivty in a viscous medium experiences a drag force proportional to the instantaneous speed u such that Fdrag = Ku . Then the terminal speed of the ball within the viscous medium is
(a) K/mg
(b) mg/K
(c) √mg?k
(d) (mg/K)2
Correct Answer – (A)
Question 7 :
Water rises to a height h in capillary tube. If the length of capillary tube above the surface of water is made less than h, then
(a) water rises upto a point a little below the top and stays there
(b) water does not rise at all
(c) water rises upto the tip of capillary tube and then starts overflowing like a fountain
(d) water rises upto the top of capillary tube and stays there without overflowing.
Correct Answer – (D)
Question 8 :
A rectangular film of liquid is extended from (4 cm × 2 cm) to (5 cm × 4 cm). If the work done is 3 × 10–4 J, the value of the surface tension of the liquid is
(a) 0.250 N m–1
(b) 0.125 N m–1
(c) 0.2 N m–1
(d) 8.0 N m–1
Correct Answer – (B)
Question 9 :
A ring is cut from a platinum tube 8.5 cm internal and 8.7 cm external diameter. It is supported horizontally from the pan of a balance, so that it comes in contact with the water in a glass vessel.
If an extra 3.97. If is required to pull it away from water, the surface tension of water is
(a) 72 dyne cm–1
(b) 70.80 dyne cm–1
(c) 63.35 dyne cm–1
(d) 60 dyne cm–1
Correct Answer – (A)
Question 10 :
Two small drops of mercury, each of radius R coalesce to form a single large drop. The radio of the total surface energies before and after the change is :
(a) 1 : 21/3
(b) 21/3 : 1
(c) 2 : 1
(d) 1 : 2
Correct Answer – (B)
- NCERT Solutions Class 11 Physics Chapter 1 : Physical world
- NCERT Solutions Class 11 Physics Chapter 2 : Units And Measurements
- NCERT Solutions Class 11 Physics Chapter 3 : Motion In A Straight Line
- NCERT Solutions Class 11 Physics Chapter 4 : Motion In A Plane
- NCERT Solutions Class 11 Physics Chapter 5 : Laws of Motion
- NCERT Solutions Class 11 Physics Chapter 6 : Work Energy Power
- NCERT Solutions Class 11 Physics Chapter 7 : Rotational-Motion
- NCERT Solutions Class 11 Physics Chapter 8 : Gravitation
- NCERT Solutions Class 11 Physics Chapter 9 : Mechanical Properties of Solids
- NCERT Solutions Class 11 Physics Chapter 10 : Mechanical Properties of Fluids
- NCERT Solutions Class 11 Physics Chapter 11 : Thermal Properties of Matter
- NCERT Solutions Class 11 Physics Chapter 12 : Thermodynamics
- NCERT Solutions Class 11 Physics Chapter 13 : Kinetic Theory
- NCERT Solutions Class 11 Physics Chapter 14 : Oscillations
- NCERT Solutions Class 11 Physics Chapter 15 : Waves
