Major Competitive Exams

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Major Competitive Exams

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Major Competitive Exams MCQ & Objective Questions

Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.

What You Will Practise Here

Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams

Exam Relevance

The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.

Common Mistakes Students Make

Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam

FAQs

Question: How can I improve my performance in Major Competitive Exams?
Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.

Question: What types of questions should I focus on for these exams?
Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.

Question: Are there specific strategies for tackling objective questions?
Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.

Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!

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Q. Which of the following materials has the highest thermal conductivity? (2020)

A. Copper
B. Wood
C. Glass
D. Air

Solution

Copper has the highest thermal conductivity among the given materials.

Correct Answer: A — Copper

Q. Which of the following materials has the highest thermal resistance?

A. Copper
B. Aluminum
C. Glass Wool
D. Steel

Solution

Glass Wool has the highest thermal resistance among the given materials, making it a good insulator.

Correct Answer: C — Glass Wool

Q. Which of the following materials has the highest Young's modulus?

A. Rubber
B. Steel
C. Wood
D. Plastic

Solution

Steel has a much higher Young's modulus compared to rubber, wood, and plastic, indicating it is much stiffer.

Correct Answer: B — Steel

Q. Which of the following materials is a common intrinsic semiconductor? (2020)

A. Copper
B. Silicon
C. Aluminum
D. Iron

Solution

Silicon is a common intrinsic semiconductor used in electronic devices.

Correct Answer: B — Silicon

Q. Which of the following materials is a ferromagnet? (2023)

A. Copper
B. Aluminum
C. Iron
D. Gold

Solution

Iron is a ferromagnetic material, which means it can be magnetized and retains its magnetic properties.

Correct Answer: C — Iron

Q. Which of the following materials is a ferromagnetic material? (2020)

A. Copper
B. Aluminum
C. Iron
D. Gold

Solution

Iron is a ferromagnetic material, which means it can be magnetized and has a high magnetic permeability.

Correct Answer: C — Iron

Q. Which of the following materials is a good conductor of electricity? (2019)

A. Rubber
B. Copper
C. Glass
D. Wood

Solution

Copper is a good conductor of electricity due to its high number of free electrons.

Correct Answer: B — Copper

Q. Which of the following materials is classified as a non-metal? (2020)

A. Iron
B. Copper
C. Sulfur
D. Aluminum

Solution

Sulfur is a non-metal, while iron, copper, and aluminum are metals.

Correct Answer: C — Sulfur

Q. Which of the following materials is commonly used as a dielectric in capacitors? (2023)

A. Copper
B. Glass
C. Iron
D. Aluminum

Solution

Glass is commonly used as a dielectric material in capacitors due to its high dielectric constant and insulating properties.

Correct Answer: B — Glass

Q. Which of the following materials is commonly used as a p-type semiconductor?

A. Silicon
B. Germanium
C. Gallium Arsenide
D. Boron-doped Silicon

Solution

Boron-doped Silicon is a common p-type semiconductor as boron creates holes in the silicon lattice.

Correct Answer: D — Boron-doped Silicon

Q. Which of the following materials is commonly used as a semiconductor?

A. Copper
B. Silicon
C. Aluminum
D. Iron

Solution

Silicon is widely used as a semiconductor material due to its suitable band gap and availability.

Correct Answer: B — Silicon

Q. Which of the following materials is commonly used for potentiometer wires?

A. Copper
B. Aluminum
C. Constantan
D. Silver

Solution

Constantan is commonly used for potentiometer wires due to its stable resistance over a range of temperatures.

Correct Answer: C — Constantan

Q. Which of the following materials is commonly used for the wire in a potentiometer?

A. Copper
B. Aluminum
C. Constantan
D. Silver

Solution

Constantan is commonly used for potentiometer wires due to its stable resistance over a range of temperatures.

Correct Answer: C — Constantan

Q. Which of the following materials is commonly used in polarizers?

A. Glass
B. Plastic
C. Polaroid
D. Water

Solution

Polaroid is a material specifically designed to polarize light.

Correct Answer: C — Polaroid

Q. Which of the following materials is considered a ferromagnetic material? (2021)

A. Copper
B. Aluminum
C. Iron
D. Gold

Solution

Iron is a ferromagnetic material, which means it can be magnetized and retains its magnetic properties.

Correct Answer: C — Iron

Q. Which of the following materials is considered a good conductor of electricity? (2022)

A. Rubber
B. Copper
C. Wood
D. Glass

Solution

Copper is a good conductor of electricity due to its low resistance and high conductivity.

Correct Answer: B — Copper

Q. Which of the following materials is considered ferromagnetic? (2022)

A. Copper
B. Aluminum
C. Iron
D. Gold

Solution

Iron is considered a ferromagnetic material, which can be magnetized and retains its magnetism.

Correct Answer: C — Iron

Q. Which of the following materials is known to exhibit polarization?

A. Glass
B. Water
C. Air
D. Vacuum

Solution

Glass can exhibit polarization when light reflects off its surface.

Correct Answer: A — Glass

Q. Which of the following materials is most likely to exhibit elastic behavior?

A. Rubber
B. Glass
C. Steel
D. Plastic

Solution

Steel is known for its elastic properties, allowing it to return to its original shape after deformation.

Correct Answer: C — Steel

Q. Which of the following materials is the best conductor of heat?

A. Wood
B. Air
C. Copper
D. Glass

Solution

Copper is known for its excellent thermal conductivity, making it the best conductor among the given options.

Correct Answer: C — Copper

Q. Which of the following materials is the best conductor of sound?

A. Air
B. Water
C. Steel
D. Wood

Solution

Sound travels fastest in solids, and steel is a solid material that conducts sound well.

Correct Answer: C — Steel

Q. Which of the following materials is typically a good conductor of electricity?

A. Rubber
B. Copper
C. Glass
D. Wood

Solution

Copper is a good conductor of electricity, while rubber, glass, and wood are insulators.

Correct Answer: B — Copper

Q. Which of the following materials transmits sound the fastest?

A. Air
B. Water
C. Steel
D. Wood

Solution

Sound travels fastest in solids like steel due to closely packed molecules.

Correct Answer: C — Steel

Q. Which of the following materials typically has the highest Young's modulus?

A. Rubber
B. Steel
C. Wood
D. Plastic

Solution

Steel typically has a much higher Young's modulus compared to rubber, wood, and plastic.

Correct Answer: B — Steel

Q. Which of the following materials would have the highest Young's modulus?

A. Rubber
B. Steel
C. Wood
D. Plastic

Solution

Steel has a much higher Young's modulus compared to rubber, wood, and plastic, indicating it is much stiffer.

Correct Answer: B — Steel

Q. Which of the following materials would sound travel fastest through? (2019)

A. Air
B. Water
C. Steel
D. Wood

Solution

Sound travels fastest through solids like steel due to closely packed molecules.

Correct Answer: C — Steel

Q. Which of the following matrices is a diagonal matrix? (2023)

A. [[1, 0], [0, 2]]
B. [[1, 2], [3, 4]]
C. [[0, 1], [1, 0]]
D. [[1, 1], [1, 1]]

Solution

A diagonal matrix is one where all off-diagonal elements are zero. The matrix [[1, 0], [0, 2]] is a diagonal matrix.

Correct Answer: A — [[1, 0], [0, 2]]

Q. Which of the following matrices is a zero matrix? (2022)

A. [[0, 0], [0, 0]]
B. [[1, 0], [0, 1]]
C. [[1, 2], [3, 4]]
D. [[0, 1], [1, 0]]

Solution

A zero matrix is one where all elements are zero. The matrix [[0, 0], [0, 0]] meets this criterion.

Correct Answer: A — [[0, 0], [0, 0]]

Q. Which of the following matrices is an identity matrix? (2023)

A. [[1, 0], [0, 1]]
B. [[0, 1], [1, 0]]
C. [[1, 1], [1, 1]]
D. [[0, 0], [0, 0]]

Solution

An identity matrix has 1s on the diagonal and 0s elsewhere. The matrix [[1, 0], [0, 1]] fits this definition.

Correct Answer: A — [[1, 0], [0, 1]]

Q. Which of the following matrices is an orthogonal matrix? (2021)

A. A matrix whose transpose is equal to its inverse
B. A matrix with all elements equal
C. A matrix with only one row
D. A matrix with all diagonal elements equal

Solution

An orthogonal matrix is defined as a matrix whose transpose is equal to its inverse.

Correct Answer: A — A matrix whose transpose is equal to its inverse

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