# CBSE Class 11 Physics Mechanical Properties of Solids MCQs, Multiple Choice Questions (2023)

## MCQ for Class 11 Physics Chapter 9 Mechanical Properties of Solids

Class 11 Physics students should refer to the following multiple-choice questions with answers for Mechanical Properties of Solids in standard 11. These MCQ questions with answers for Grade 11 Physics will come in exams and help you to score good marks

### Chapter 9 Mechanical Properties of Solids MCQ Questions Class 11 Physics with Answers

Question:If the length of a wire is reduced to half, then it can hold the

Question:The Young’s modulus of a perfectly rigid body is

a) infinity

b) some finite non-zero constant

c) zero

d) unity

Question:According to Hooke’s law of elasticity, if stress is increased, then the ratio of stress to strain

a) remains constant

b) increases

c) becomes zero

d) decreases

Question:The restoring force per unit area is known as

a) stress

b) plasticity

c) elasticity

d) strain

Question:In magnitude hydraulic stress is equal to

a) hydraulic pressure

b) hydraulic strain

c) hydraulic force

d) restoring force

Question:Substances which can be stretched to cause large strains are called

a) elastomer

b) plastic

c) ductile

d) brittle

Question:The reason for the change in shape of a regular body is

a) volume stress

b) shearing strain

c) longitudinal strain

d) metallic strain

Question:Longidudinal stress depends on

a) area

b) length

c) volume

(Video) Mechanical Properties of Solids MCQs | Class 11 Physics MCQs (50+ Solved)

d) mass

Question:Which of the following affects the elasticity of a substance?

a) All of the above

b) Impurity in substance

c) Change in temperature

d) Hammering and annealing

Question:If the load is increased beyond the _______ point, the strain increases rapidly for even a small change in the stress

a) yield point

b) fracture point

c) elastic point

d) plastic point

Question:Which of the following elastic moduli is used to describe the elastic behaviour of object as they respond to the deforming forces acting on them?

a) All of these

b) Shear modulus

c) Young's modulus

d) Bulk modulus

Question:Which of the following is the correct relation? Y = Young's modulus & G = modulus of rigidity?

a) Y > G

b) None of these

c) Y < G

d) Y = G

Question:The ratio of shearing stress to the corresponding shearing strain is called

a) modulus of rigidity

b) bulk modulus

c) Young's modulus

d) None of these

Question:The reciprocal of the bulk modulus is called

a) compressibility

b) volume stress

c) modulus of rigidity

d) volume strain

Question:Which of the following statements is/are wrong?

I. Hollow shaft is much stronger than a solid rod of same length and same mass.

II. Reciprocal of bulk modulus of elasticity is called compressibility.

III. It is difficult to twist a long rod as compared to small rod.

a) III only

b) I only

c) II and III

d) I and II

Question:Shearing strain is expressed by

a) angle of shear

b) decrease in volume

c) angle of twist

d) increase in volume

Question:A uniform cube is subjected to volume compression. If each side is decreased by 1%, then bulk strain is

a) 0.03

b) 0.02

(Video) Best MCQ Class 11 Mechanical Properties of Solids // NCERT Class 11 Solids / MCQ Class 11 Physics

c) 0.06

d) 0.01

Question:Assertion : Identical springs of steel and copper are equally stretched. More work will be done on the steel spring

Reason : Steel is more elastic than copper.

a) Assertion is correct, reason is correct; reason is a correct explanation for assertion

b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion

c) Assertion is correct, reason is incorrect

d) Assertion is incorrect, reason is correct

Answer:Assertion is correct, reason is correct; reason is a correct explanation for assertion

Question:The Poisson’s ratio of a material is 0.5. If a force is applied to a wire of this material, there is a decrease in the cross-sectional area by 4%. The percentage increase in the length is

a) 4%

b) 2.5%

c) 2%

d) 1%

Question:Modulus of rigidity of ideal liquids is

a) zero

b) infinity

c) unity

d) some finite small non-zero constant value

Question:Beyond the critical speed, the flow of fluids becomes

a) turbulent

b) streamline

d) very slow

Question:Streamline flow is more likely for liquids with

a) low density and high viscosity

b) low density and high viscosity

c) high density and high viscosity

d) high density and high viscosity

Question:For flow of a fluid to be turbulent

a) both

b) fluid should have high density

c) velocity should be large

d) None of these

Question:In Bernoulli’s theorem which of the following is conserved?

a) Energy

b) Mass

c) Linear momentum

d) Angular momentum

Question:A liquid is allowed to flow into a tube of truncated cone shape. Identify the correct statement from the following

a) the speed is low at the wider end and high at the narrow end.

b) the speed is high at the wider end and high at the narrow end

c) the speed is same at both ends in a stream line flow.

d) the liquid flows with uniform velocity in the tube.

Answer:the speed is low at the wider end and high at the narrow end.

Question:As the temperature of a liquid is raised, the coefficient of viscosity

a) decreases

b) increases

c) remains the same

(Video) CLASS XI MCQs for NEET || Physics || Mechanical Properties of Solids MCQs || by Shiksha House

d) may increase or decrease depending on the nature of liquid

Question:After terminal velocity is reached, the acceleration of a body falling through a fluid is

a) zero

b) equal to g

c) less than g

d) greater than g

Question:Terminal velocity of ball depends on

a) density difference of liquid and ball

b) density of ball only

c) density of liquid only

d) area of the ball

Answer:density difference of liquid and ball

Question:Surface tension of a liquid is due to

a) cohesive force between molecules

c) electrical force between molecules

d) gravitational force between molecules

Question:If a soap bubble formed at the end of the tube is blown very slowly, then the graph between excess pressure inside the bubble with time will be a

a) parabolic curve sloping down

b) parabolic curve sloping up

c) straight line sloping down

d) straight line sloping up

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### CBSE Class 11 Physics Chapter 9 Mechanical Properties of Solids MCQs

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#### CBSE MCQs Physics Class 11 Chapter 9 Mechanical Properties of Solids

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(Video) Multiple choice Questions ,Part-1, Elasticity Properties of Bulk Matter, 11th Physics #elasticity

What are MCQs for Class 11 Physics Chapter 9 Mechanical Properties of Solids

Multiple Choice Questions (MCQs) for Chapter 9 Mechanical Properties of Solids Class 11 Physics are objective-based questions which provide multiple answer options, and students are required to choose the correct answer from the given choices.

## FAQs

### What are the examples of mechanical properties of solids Class 11 physics? ›

Examples of mechanical properties are elasticity, plasticity, strength, abrasion, hardness, ductility, brittleness, malleability and toughness.

How to guess answers in physics mcq? ›

How To Score Well For Physics MCQ
1. Understand the parts. ...
4. Eliminate each clearly incorrect answer. ...
5. Underline the key part of the question which contains the key to the answer. ...
6. Use the formula sheet to answer questions. ...
7. Don't read too deep into the questions.
May 6, 2023

Is Chapter 3 of Physics Class 11 important? ›

The NCERT Exemplar Class 11 Physics Chapter 3 Motion in a Straight Line is a significant resource for students who are preparing for CBSE Class 11 examination and entrance examinations like JEE Main, JEE Advanced, NEET, and other state entrance examinations.

What are the mechanical properties of solids objective? ›

The major mechanical properties of solids are Elasticity, Plasticity, Ductility and Strength. Elasticity is defined as the property of a solid regaining the original shape once the external force is removed.

What is Hooke's Law in physics class 11? ›

Mathematically, Hooke's law states that the applied force F equals a constant k times the displacement or change in length x, or F = kx.

What is Hooke's law of deformation in solids? ›

The deformation formula according to Hooke's law is; σ = E * ε, where σ is the force applied, E is the spring or elastic constant (called young's modulus), and ε is the extension or resulting strain.

How can I get MCQ answers fast? ›

1. Read the entire question. ...
3. Use the process of elimination. ...
4. True or false test. ...
5. Look for answers hidden in questions. ...
6. Select the best answer. ...
7. Answer the questions you know first.
8. Pay attention to these words.
Apr 5, 2023

Which is the hardest chapter in physics in class 11? ›

1. Heat and Thermodynamics. It is probably the most difficult yet one of the important topics for JEE Main Physics. Students who do not understand the application part of the topic often find it difficult to solve questions related to the topic.

Which is the easiest chapter in physics class 11 CBSE? ›

The easiest chapters among all the syllabus is the modern Physics, Radioactivity, kinematics( it is very scoring), Thermodynamics, waves and optics.

Why physics is a difficult subject? ›

It is a very complex and complicated combination of computer science, mathematics, and basic science. Students have to learn and memorize countless laws and definitions. You also have to use concepts like geometry, algebra, and calculus to solve physics problems.

### Which is more elastic AB or C? ›

For the given question graph, the maximum value of slope will give the maximum modulus of elasticity. For the given question A has more slope than B and C. Therefore modulus of elasticity will be maximum for material A. Hence the correct answer is option 1.

What are the names of 5 mechanical properties? ›

Mechanical properties are also used to help classify and identify material. The most common properties considered are strength, ductility, hardness, impact resistance, and fracture toughness.

What are 6 mechanical properties? ›

Some of the typical mechanical properties of a material include:
• Strength.
• Toughness.
• Hardness.
• Hardenability.
• Brittleness.
• Malleability.
• Ductility.
• Creep and Slip.
Oct 27, 2020

What is the Poisson's ratio Class 11? ›

What Is Poisson's Ratio? Poisson's ratio is “the ratio of transverse contraction strain to longitudinal extension strain in the direction of the stretching force.” Here, Compressive deformation is considered negative. Tensile deformation is considered positive.

What is the unit of elasticity? ›

The SI unit for elasticity and the elastic modulus is the pascal (Pa). This unit is defined as force per unit area, generally a measurement of pressure, which in mechanics corresponds to stress. The pascal and therefore elasticity have the dimension L1⋅M⋅T2.

What is the difference between elasticity and plasticity? ›

1) Elasticity is the property of solid material that it gains its original shape and size after the removal of applied force. 1)Plasticity is the property of solid material that it does not gain its original shape and size after the removal of applied force.

What is the formula for tensile stress? ›

Different between tensile stress and tensile strength
Tensile stressTensile strength
The formula of the tensile stress is: σ = F/AThe formula of the tensile strength is: s = P/a.
1 more row

What is the difference between stress and strain? ›

Stress and strain are two of the most important concepts in materials science and engineering. Stress refers to the force applied to a material per unit area, while strain is a deformation or change in the shape of the material that results from the applied force.

What is the symbol for strain? ›

The conventional symbols for stress are the Greek letters σ and τ and the symbols used for strain are ε and γ.

How do you get 100% on multiple choice exams? ›

How to ace multiple choice tests
3. Look for common types of wrong answers. ...
4. Eliminate answers in two rounds. ...
5. Do not obsess over your choices. ...
Nov 15, 2022

### How to pass a test in one hour? ›

How to revise in an hour
1. Step 1 – Pick a past paper question. You've only got an hour so it's time to get specific. ...
2. Step 2 – Revise for your question – 20 minutes. ...
3. Step 3 – Do the question – 20 minutes. ...
6. Step 6 - Give yourself more than an hour!

What is the most common answer on a multiple choice test? ›

Most people (and tutors) tell students that, if they have no idea on a question, to just guess answer choice “C” — the middle answer on most multiple choice tests.

How to crack MCQs without studying? ›

Tips To Crack MCQs
1. No Guess Work: No MCQ based exams these days are without negative marking. ...
3. Avoid Extreme Choices: ...
5. Time Management:

Is there an app that can answer multiple choice questions? ›

Socratic by Google on the App Store.

Are multiple choice tests effective? ›

Multiple choice test items are less susceptible to guessing than true/false questions, making them a more reliable means of assessment. The reliability is enhanced when the number of MC items focused on a single learning objective is increased.

How can I pass a multiple choice test without knowing anything? ›

Here are a few of Poundstone's tactics for outsmarting any multiple-choice test:
1. Ignore conventional wisdom. ...
2. Look at the surrounding answers. ...
3. Choose the longest answer. ...
4. Eliminate the outliers.
Jun 26, 2015

How can I get a 100 on a test without studying? ›

How to Pass an Exam Without Studying
1. Reading and Understanding the Exam.
2. Answering Difficult Questions on the Exam.
3. Tackling Multiple Choice Questions.
4. Choosing the Best Answer on True/False Sections.
5. Improving Your Mental State for the Exam.

How do I study for Mcqs? ›

Use effective strategies to write the exam
1. Read the question carefully, before looking at the choices: Note key terms or concepts. ...
2. If you are having trouble understanding a question, try to rephrase it in your own words. Read the alternatives carefully. ...
Dec 2, 2022

Which is the easiest chapter in class 11? ›

Generally easiness of chapter in Mathematics depends upon the priority of a person's interest. However some chapters like set theory, mathematical induction, A.P, G.P, differentiation, matrix in class 11 and 12 are considered to less complicated compared to other chapters.

What is the easiest chapter in physics? ›

The list of easy to prepare chapters are:
• Coulomb's Law of Vector.
• Gauss's law of applications.
• Electric dipole in the external electric field.
• Electric dipole on axial.

### Which subjects are toughest in class 11? ›

Which are the toughest subjects in CBSE Class 11? For the students of Class 11, Physics is acknowledged as one of the most difficult subjects of CBSE as one needs to have a good understanding of the various concepts of Mathematics in the subject and most of the students find maths difficult to practice and study.

Which chapter of class 11 physics is most important? ›

CBSE Class 11 Physics: Important Topics and Tips for Final Exams
• Chapter 1 – Physical World.
• Chapter 2 – Units and Measurement.
• Chapter 3 – Motion in a Straight Line.
• Chapter 4 – Motion In a Plane.
• Chapter 5 – Laws of Motion.
• Chapter 6 – Work, Energy and Power.
• Chapter 7 – Systems of Particles and Rotational Motion.
Feb 16, 2016

Which is the easiest chapter in science? ›

The simplest science chapter in class 10 is chemical reactions.

Which is harder math or physics? ›

Why is Physics harder than Math? Answer: Physics demands problem-solving skills that can be developed only with practice. It also involves theoretical concepts, mathematical calculations and laboratory experiments that adds to the challenging concepts.

How can I do well in physics? ›

How to Study Physics: 14 Techniques to Improve Your Memory
1. Master the Basics. ...
2. Learn How to Basic Equations Came About. ...
3. Always Account For Small Details. ...
4. Work on Improving Your Math Skills. ...
5. Simplify the Situations. ...
6. Use Drawings. ...
8. Use Every Source of Physics Help Available.
May 11, 2021

What is the strongest elasticity? ›

Woven elastic—or “no roll”—is the strongest garment elastic. This elastic is easily identified by its horizontal and vertical ribs. This variety of elastic does not become more narrow as it stretches and does not lose resiliency when sewn.

Which elasticity is higher? ›

If price elasticity is greater than 1, the good is elastic; if less than 1, it is inelastic. If a good's price elasticity is 0 (no amount of price change produces a change in demand), it is perfectly inelastic.

Which has highest elasticity? ›

Thus, the steel possesses the highest elasticity among the given materials.

Is viscosity a mechanical property? ›

The mechanical property of Fluids is such as viscosity and surface tension.

What are the 7 properties of materials? ›

Physical properties of materials
• density.
• melting point.
• thermal conductivity.
• electrical conductivity (resistivity)
• thermal expansion.
• corrosion resistance.

### Is Young's modulus a mechanical property? ›

Young's modulus, also known as the tensile modulus, elastic modulus or traction modulus (measured in Pa, which is a pressure unit(N.m^-2; 10MPa is equivalent to 1Kg force per square millimeter) is a mechanical property of linear elastic materials.

Is tensile strength a mechanical property? ›

Tensile strength is a mechanical property that is often used to determine critical design parameters.

Is melting point a mechanical property? ›

Physical characteristics of metal are things such as density, melting point, conductivity, and coefficient of expansion. Mechanical properties of an alloy are how the metal performs when different forces are applied to them. Mechanical characteristics include things such as strength, ductility, and wear resistance.

What are the 4 types of material properties? ›

Mechanical properties of materials

Mechanical properties include, among others, density, hardness and elasticity.

What are the mechanical properties of solids in physics? ›

Mechanical properties of solids elaborates the characteristics such as the resistance to deformation and their strength. Strength is the ability of an object to withstand the applied stress, to what extent can it bear the stress. Resistance to deformation is how resistant any object is to the change of shape.

What are examples of mechanical properties? ›

Examples of mechanical properties include modulus of elasticity, tensile strength, hardness, ductility, impact resistance, compression modulus and fatigue limit.

What are any 5 mechanical properties? ›

The most common properties considered are strength, ductility, hardness, impact resistance, and fracture toughness.

What are the example of properties of solids? ›

• A solid has a definite shape and volume.
• Solids in general have higher density.
• In solids, intermolecular forces are strong.
• Diffusion of a solid into another solid is extremely slow.
• Solids have high melting points.

What does mechanical properties depend on? ›

The mechanical properties of any structure depend on two factors: the geometry of the structure and the properties of the material from which that structure was made.

What is tensile stress and tensile strain? ›

tensile stress = F ⊥ A . tensile stress = F ⊥ A . 12.34. Tensile strain is the measure of the deformation of an object under tensile stress and is defined as the fractional change of the object's length when the object experiences tensile stress. tensile strain = Δ L L 0 .

### What are three mechanical properties of solids? ›

Mechanical properties are those properties of solids which define its solidity. These properties include plasticity, elasticity, strength, and ductility.

How many mechanical properties does a solid have? ›

As per the chapter, Mechanical Properties of Solid, Hooke's law expresses the relationship between the two main mechanical properties of solids- stress, and strain. It states that, within an elastic range, the strain within an object (consider a spring in this case) is proportionate to the stress applied to it.

How do you identify mechanical properties? ›

Some mechanical properties can be assessed using different types of tests. For example, toughness can be determined with a Charpy V-notch test or an Izod test, and hardness can be evaluated with Vickers, Brinell and Rockwell tests.

What are the 2 main categories of solids? ›

There are two main categories of solids—crystalline solids and amorphous solids. Crystalline solids are those in which the atoms, ions, or molecules that make up the solid exist in a regular, well-defined arrangement.

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