NEET Physics: Mechanical Properties of Fluids — Free Practice Set 4 (15 MCQs)

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Mechanical Properties of Fluids. It contains 15 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

0

Easy

15

Medium

0

Hard

Key concepts covered in this specific test include Pressure, Absolute, Seawater, Statement, Incorrect, and Supports.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. A sphere of radius \( 0.05 \, \text{m} \) moves at \( 0.11 \, \text{m/s} \) through blood (\( \eta = 2.7 \times 10^{-3} \, \text{Pa s} \)). What is the viscous drag force?

A. 0.0025 N
B. 0.0028 N
C. 0.0030 N
D. 0.0032 N

Q2. What is the excess pressure inside a water drop of radius \( 2.5 \, \text{mm} \) at \( 20^\circ \text{C} \)? (Surface tension = \( 0.0727 \, \text{N/m} \))

A. 40 Pa
B. 50 Pa
C. 58 Pa
D. 65 Pa

Q3. A bubble of radius \( 5.5 \, \text{mm} \) is blown at \( 45 \, \text{cm} \) depth in water (\( \rho = 1000 \, \text{kg/m}^3 \), \( S = 0.0727 \, \text{N/m} \)). What is the total pressure inside? (Take \( P_a = 1.01 \times 10^5 \, \text{Pa} \), \( g = 10 \, \text{m/s}^2 \))

A. 1.04 × 10⁵ Pa
B. 1.05 × 10⁵ Pa
C. 1.055 × 10⁵ Pa
D. 1.06 × 10⁵ Pa

Q4. What is the absolute pressure at \( 450 \, \text{m} \) depth in seawater (\( \rho = 1.03 \times 10^3 \, \text{kg/m}^3 \)) with \( P_a = 1.01 \times 10^5 \, \text{Pa} \)? (Take \( g = 9.8 \, \text{m/s}^2 \))

A. 4.5 × 10⁶ Pa
B. 4.6 × 10⁶ Pa
C. 4.7 × 10⁶ Pa
D. 4.8 × 10⁶ Pa

Q5. Which statement is incorrect about Stokes’ law?

A. It applies to spherical objects
B. It involves viscous force
C. It applies to turbulent flow
D. Velocity is constant at terminal speed

+ 10 more questions in the actual test

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Yes, once you submit the test, you will get an instant scorecard along with the correct answers and detailed explanations for every question.

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NEET Physics — Mechanical Properties of Fluids

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Preview of Questions in this Test

Q1. A sphere of radius \( 0.05 \, \text{m} \) moves at \( 0.11 \, \text{m/s} \) through blood (\( \eta = 2.7 \times 10^{-3} \, \text{Pa s} \)). What is the viscous drag force?

Q2. What is the excess pressure inside a water drop of radius \( 2.5 \, \text{mm} \) at \( 20^\circ \text{C} \)? (Surface tension = \( 0.0727 \, \text{N/m} \))

Q3. A bubble of radius \( 5.5 \, \text{mm} \) is blown at \( 45 \, \text{cm} \) depth in water (\( \rho = 1000 \, \text{kg/m}^3 \), \( S = 0.0727 \, \text{N/m} \)). What is the total pressure inside? (Take \( P_a = 1.01 \times 10^5 \, \text{Pa} \), \( g = 10 \, \text{m/s}^2 \))

Q4. What is the absolute pressure at \( 450 \, \text{m} \) depth in seawater (\( \rho = 1.03 \times 10^3 \, \text{kg/m}^3 \)) with \( P_a = 1.01 \times 10^5 \, \text{Pa} \)? (Take \( g = 9.8 \, \text{m/s}^2 \))

Q5. Which statement is incorrect about Stokes’ law?

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NEET Physics: Mechanical Properties of Fluids — MCQ Test 4

Q6. A soap film supports \( 2.2 \times 10^{-2} \, \text{N} \) over a \( 44 \, \text{cm} \) slider. What is the surface tension?

Q7. What is the reason a small insect can walk on water?

Q8. Why does the pressure inside a liquid drop exceed the external pressure?

Q9. Why does a fluid at rest exert the same pressure at all points at the same horizontal level?

Q10. Water (\( \rho = 1000 \, \text{kg/m}^3 \)) flows horizontally at \( 4.2 \, \text{m/s} \) with pressure \( 1.95 \times 10^5 \, \text{Pa} \). If the speed increases to \( 6.5 \, \text{m/s} \), what is the new pressure?

Q11. A tank has a hole \( 1.4 \, \text{m} \) below the water surface, open to the atmosphere. What is the efflux speed? (Take \( g = 9.8 \, \text{m/s}^2 \))

Q12. A soap film supports \( 1.8 \times 10^{-2} \, \text{N} \) over a \( 35 \, \text{cm} \) slider. What is the surface tension?

Q13. A hydraulic lift raises a \( 1700 \, \text{kg} \) load using a small piston of radius \( 3.5 \, \text{cm} \) and a large piston of radius \( 14 \, \text{cm} \). What force is applied on the small piston? (Take \( g = 10 \, \text{m/s}^2 \))

Q14. What is the total pressure at a depth of \( 2.2 \, \text{m} \) in hydrogen liquid (\( \rho = 9.0 \times 10^{-2} \, \text{kg/m}^3 \)) with atmospheric pressure \( 1.01 \times 10^5 \, \text{Pa} \)? (Take \( g = 9.8 \, \text{m/s}^2 \))

Q15. A manometer with water (\( \rho = 1000 \, \text{kg/m}^3 \)) shows a height difference of \( 0.15 \, \text{m} \). What is the pressure difference? (Take \( g = 9.8 \, \text{m/s}^2 \))

NEET Physics — Mechanical Properties of Fluids

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Preview of Questions in this Test

Q1. A sphere of radius \( 0.05 \, \text{m} \) moves at \( 0.11 \, \text{m/s} \) through blood (\( \eta = 2.7 \times 10^{-3} \, \text{Pa s} \)). What is the viscous drag force?

Q2. What is the excess pressure inside a water drop of radius \( 2.5 \, \text{mm} \) at \( 20^\circ \text{C} \)? (Surface tension = \( 0.0727 \, \text{N/m} \))

Q3. A bubble of radius \( 5.5 \, \text{mm} \) is blown at \( 45 \, \text{cm} \) depth in water (\( \rho = 1000 \, \text{kg/m}^3 \), \( S = 0.0727 \, \text{N/m} \)). What is the total pressure inside? (Take \( P_a = 1.01 \times 10^5 \, \text{Pa} \), \( g = 10 \, \text{m/s}^2 \))

Q4. What is the absolute pressure at \( 450 \, \text{m} \) depth in seawater (\( \rho = 1.03 \times 10^3 \, \text{kg/m}^3 \)) with \( P_a = 1.01 \times 10^5 \, \text{Pa} \)? (Take \( g = 9.8 \, \text{m/s}^2 \))

Q5. Which statement is incorrect about Stokes’ law?

Frequently Asked Questions

Is this practice set completely free?

Are these questions relevant for the latest NEET syllabus?

Can I view the solutions after the test?

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