NCERT Class 11 Physics MCQ Chapter 9 Mechanical Properties of Fluids Solutions, AHSEC Class 11 Physics Multiple Choice Question Answer to each chapter is provided in the list so that you can easily browse throughout different chapters NCERT Class 11 Physics MCQ Chapter 9 Mechanical Properties of Fluids Question Answer and select needs one.
Class 11 Physics MCQ Chapter 9 Mechanical Properties of Fluids
Also, you can read the SCERT book online in these sections NCERT Class 11 Physics Multiple Choice Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. AHSEC Class 11 Physics MCQ Solutions. These solutions are part of SCERT All Subject Solutions. Here we have given HS 1st Year Physics Objective Type Question Answer for All Subjects, You can practice these here.
Mechanical Properties of Fluids
Chapter: 9
| PART – ⅠⅠ |
MULTIPLE CHOICE QUESTION ANSWER
1. What are fluids?
(i) Only liquids.
(ii) Substances that can flow, such as liquids and gases.
(iii) None of the above.
(iv) All of the above.
Ans: (ii) Substances that can flow, such as liquids and gases.
2. Which device is used to measure pressure?
(i) Odometer.
(ii) Barometer.
(iii) Dynamometer.
(iv) Hydrometer.
Ans: (ii) Barometer.
3. Density of air at higher altitudes is:
(i) Constant.
(ii) Greater.
(iii) Less.
(iv) Zero.
Ans: (iii) Less.
4. Which of the following quantities has the same S.I. unit as that of pressure?
(i) Work.
(ii) Energy / Velocity.
(iii) Energy / Displacement.
(iv) mass × (velocity)2/Volume.
Ans: (iv) mass × (velocity)2/Volume.
5. Viscosity of gases ___ with temperature, while viscosity of liquids ___ with temperature.
(i) Increases; decreases.
(ii) Decreases; increases.
(iii) Increases; increases.
(iv) Decreases; decreases.
Ans: (i) Increases; decreases.
6. Plants get water through the roots because of:
(i) Capillarity.
(ii) Viscosity.
(iii) Gravity.
(iv) Elasticity.
Ans: (i) Capillarity.
7. What does the SI unit of pressure, pascal (Pa), represent?
(i) kg/m²
(ii) N/m²
(iii) m/s²
(iv) kg/m³
Ans: (ii) N/m²
8. At critical temperature, the surface tension of a liquid:
(i) Is zero.
(ii) Is increasing.
(iii) Is Decreasing.
(iv) None of the above.
Ans: (i) Is zero.
9. What is the height of a wine column in Torricelli’s barometer for normal atmospheric pressure if the density of the wine is 984 kg/m³?
(i) 10.52 m.
(ii) 8.5 m.
(iii) 5.2 m.
(iv) 15 m.
Ans: (i) 10.52 m.
10. Two soap bubbles have radii in the ratio of 4 : 3. What is the ratio of work done to below these bubbles?
(i) 4 : 3
(ii) 16 : 9
(iii) 09 : 16
(iv) 3 : 4
Ans: (ii) 16 : 9
11. If an area of 0.05 m² is subjected to a force of 200 N, what is the pressure?
(i) 2000 Pa
(ii) 4000 Pa
(iii) 6000 Pa
(iv) 1000 Pa
Ans: (ii) 4000 Pa
12. The velocity of liquid ejected from a spray nozzle is primarily determined by:
(i) Density of the liquid.
(ii) Area of the holes.
(iii) Gravity.
(iv) Pressure difference.
Ans: (iv) Pressure difference.
13. The surface of water in contact with glass wall is:
(i) Plane.
(ii) Concave.
(iii) Convex.
(iv) None of the above.
Ans: (ii) Concave.
14. If the density of water is 1000 kg/m³, the pressure at a depth of 10 m below the water surface is:
(i) 9,800 Pa.
(ii) 98,000 Pa.
(iii) 980,000 Pa.
(iv) 980 Pa.
Ans: (ii) 98,000 Pa.
15. Bernoulli’s equation relates:
(i) Pressure, volume, and temperature.
(ii) Velocity, pressure, and height.
(iii) Density, mass, and area.
(iv) Force, area, and height.
Ans: (ii) Velocity, pressure, and height.
