NEET Physics is the very imporatant paper in the Medical Entrance EXAM. Here, you will discover the NEET Physics MCQs and Answers for all Concepts as per the new syllabus. Practice daily with these NEET Physics objective questions on air pollution . NEET Physics Surface Tension Multiple Choice Questions make you feel confident in answering the question in the
MCQs on Surface Tension :
1. When there are no external forces, the shape of a liquid drop is determined by
(A) Surface Tension of the liquid
(B) The density of the liquid
(C) The viscosity of the liquid
(D) The temperature of air only
Answer
Answer: (A) Surface Tension of the liquid
2. If T is the surface tension of the soap solution, the amount of work done in blowing a soap bubble from diameter D to a diameter 2D is
(A) 2πD2T
(B) 4πD2T
(C) 6πD2T
(D) 8πD2T
Answer
Answer: (C) 6πD2T
3. If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of the container is
(A) Acute angle
(B) Obtuse angle
(C) 900
(D) 00
Answer
Answer: (D) 00
4. Raindrops are spherical in shape because of
(A) Capillary
(B) Surface Tension
(C) Downward motion
(D) Acceleration due to gravity
Answer
Answer: (B)Surface Tension
5. In a surface tension experiment with a capillary tube, the water rises up to 0.1m. If the same experiment is repeated on an artificial satellite which is revolving around the earth. The rise of water in a capillary tube is
(A) 0.1 m
(B) 9.8 m
(C) 0.98 m
(D) Full length of the capillary tube
Answer
Answer: (D) Full length of the capillary tube
6. At the critical temperature, the surface tension of the liquid
(A) Is zero
(B) Is infinity
(C) Is the same as that at the other temperature
(D) Cannot be determined
Answer
Answer: (A) Is zero
7. The surface of the water in contact with the glass wall is
(A) Plane
(B) Concave
(C) Convex
(D) Both a and b
Answer
Answer: (B) Concave
8. When a soap bubble is charged
(A) It contracts
(B) It expands
(C) It does not undergo any change in size
(D) None of these
Answer
Answer: (B) It expands
9. If common salt is dissolved in water, then the surface tension of saltwater is
(A) Increased
(B) Decreased
(C) Not changed
(D) First increases then decrease
Answer
Answer: (A) Increased
10. A drop of oil is placed on the surface of the water. Which of the following statements is correct?
(A) It will remain on it as a sphere
(B) It will spread as a thin layer
(C) It will partly be as spherical droplets and partly as thin films
(D) It will float at the distorted drop on the water surface.
Answer
Answer: (B) It will spread as a thin layer