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!
Q. Which landform is formed by the erosion of rock by wind?
A.
Mesa
B.
Dune
C.
Canyon
D.
Plateau
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Solution
Sand dunes are formed by the accumulation of sand that is eroded and transported by wind.
Correct Answer:
B
— Dune
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Q. Which landform is typically associated with tectonic activity and is characterized by steep slopes? (2019)
A.
Plain
B.
Mountain
C.
Plateau
D.
Hill
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Solution
Mountains are typically associated with tectonic activity and are characterized by steep slopes.
Correct Answer:
B
— Mountain
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Q. Which landform is typically created by volcanic activity?
A.
Canyon
B.
Hill
C.
Volcano
D.
Plain
Show solution
Solution
A volcano is a landform created by the eruption of magma from beneath the Earth's crust.
Correct Answer:
C
— Volcano
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Q. Which law relates the magnetic field around a conductor to the current flowing through it? (2023)
A.
Faraday's Law
B.
Ampere's Law
C.
Ohm's Law
D.
Lenz's Law
Show solution
Solution
Ampere's Law relates the magnetic field around a conductor to the current flowing through it.
Correct Answer:
B
— Ampere's Law
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Q. Which law states that an object in motion stays in motion unless acted upon by an external force? (2023)
A.
Newton's First Law
B.
Newton's Second Law
C.
Newton's Third Law
D.
Law of Conservation of Energy
Show solution
Solution
Newton's First Law states that an object in motion stays in motion unless acted upon by an external force.
Correct Answer:
A
— Newton's First Law
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Q. Which law states that energy cannot be created or destroyed, only transformed? (2021)
A.
Zeroth Law
B.
First Law
C.
Second Law
D.
Third Law
Show solution
Solution
The First Law of Thermodynamics states that energy cannot be created or destroyed, only transformed.
Correct Answer:
B
— First Law
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Q. Which law states that energy cannot be created or destroyed?
A.
Zeroth law
B.
First law
C.
Second law
D.
Third law
Show solution
Solution
The first law of thermodynamics states that energy cannot be created or destroyed, only transformed.
Correct Answer:
B
— First law
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Q. Which law states that for every action, there is an equal and opposite reaction? (2022)
A.
Newton's First Law
B.
Newton's Second Law
C.
Newton's Third Law
D.
Law of Conservation of Momentum
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Solution
Newton's Third Law states that for every action, there is an equal and opposite reaction.
Correct Answer:
C
— Newton's Third Law
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Q. Which law states that the current through a conductor between two points is directly proportional to the voltage across the two points? (2021)
A.
Ohm's Law
B.
Kirchhoff's Law
C.
Faraday's Law
D.
Ampere's Law
Show solution
Solution
Ohm's Law states that the current (I) through a conductor is directly proportional to the voltage (V) across it, given by the formula V = IR.
Correct Answer:
A
— Ohm's Law
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Q. Which law states that the entropy of a perfect crystal approaches zero as the temperature approaches absolute zero?
A.
Zeroth law of thermodynamics
B.
First law of thermodynamics
C.
Second law of thermodynamics
D.
Third law of thermodynamics
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Solution
The Third law of thermodynamics states that the entropy of a perfect crystal approaches zero as the temperature approaches absolute zero.
Correct Answer:
D
— Third law of thermodynamics
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Q. Which law states that the entropy of an isolated system always increases? (2021)
A.
Zeroth law of thermodynamics
B.
First law of thermodynamics
C.
Second law of thermodynamics
D.
Third law of thermodynamics
Show solution
Solution
The second law of thermodynamics states that the entropy of an isolated system will always increase over time.
Correct Answer:
C
— Second law of thermodynamics
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Q. Which law states that the entropy of an isolated system never decreases? (2021)
A.
Zeroth law of thermodynamics
B.
First law of thermodynamics
C.
Second law of thermodynamics
D.
Third law of thermodynamics
Show solution
Solution
The second law of thermodynamics states that the entropy of an isolated system never decreases over time.
Correct Answer:
C
— Second law of thermodynamics
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Q. Which law states that the heat absorbed or released by a substance is proportional to the change in temperature? (2021)
A.
Boyle's Law
B.
Charles's Law
C.
Newton's Law of Cooling
D.
Calorimetry
Show solution
Solution
Calorimetry states that the heat absorbed or released by a substance is proportional to the change in temperature.
Correct Answer:
D
— Calorimetry
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Q. Which law states that the induced electromotive force (emf) in a closed circuit is proportional to the rate of change of magnetic flux through the circuit?
A.
Faraday's law
B.
Ampere's law
C.
Ohm's law
D.
Lenz's law
Show solution
Solution
Faraday's law states that the induced emf in a closed circuit is proportional to the rate of change of magnetic flux.
Correct Answer:
A
— Faraday's law
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Q. Which law states that the induced electromotive force (emf) in a closed loop is equal to the negative rate of change of magnetic flux through the loop? (2022)
A.
Faraday's Law
B.
Lenz's Law
C.
Ohm's Law
D.
Ampere's Law
Show solution
Solution
Faraday's Law states that the induced emf in a closed loop is equal to the negative rate of change of magnetic flux through the loop.
Correct Answer:
A
— Faraday's Law
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Q. Which law states that the induced electromotive force is proportional to the rate of change of magnetic flux? (2022)
A.
Faraday's Law
B.
Lenz's Law
C.
Ohm's Law
D.
Ampere's Law
Show solution
Solution
Faraday's Law of electromagnetic induction states that the induced electromotive force in any closed circuit is equal to the rate of change of magnetic flux through the circuit.
Correct Answer:
A
— Faraday's Law
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Q. Which law states that the induced EMF in a circuit is proportional to the rate of change of magnetic flux through the circuit? (2022)
A.
Faraday's Law
B.
Lenz's Law
C.
Ohm's Law
D.
Ampere's Law
Show solution
Solution
Faraday's Law states that the induced EMF is proportional to the rate of change of magnetic flux.
Correct Answer:
A
— Faraday's Law
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Q. Which law states that the induced EMF in a closed loop is equal to the negative rate of change of magnetic flux through the loop? (2022)
A.
Faraday's Law
B.
Lenz's Law
C.
Ohm's Law
D.
Ampere's Law
Show solution
Solution
Faraday's Law states that the induced EMF in a closed loop is equal to the negative rate of change of magnetic flux through the loop.
Correct Answer:
A
— Faraday's Law
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Q. Which law states that the pressure of a gas is directly proportional to its temperature at constant volume? (2019)
A.
Boyle's Law
B.
Charles's Law
C.
Gay-Lussac's Law
D.
Avogadro's Law
Show solution
Solution
Gay-Lussac's Law states that the pressure of a gas is directly proportional to its temperature at constant volume.
Correct Answer:
C
— Gay-Lussac's Law
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Q. Which law states that the rate of heat transfer through a material is proportional to the temperature difference across it?
A.
Newton's Law of Cooling
B.
Fourier's Law
C.
Stefan-Boltzmann Law
D.
Ohm's Law
Show solution
Solution
Fourier's Law states that the rate of heat transfer through a material is proportional to the temperature difference across it.
Correct Answer:
B
— Fourier's Law
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Q. Which law states that the rate of heat transfer through a material is proportional to the temperature gradient?
A.
Newton's Law of Cooling
B.
Fourier's Law of Heat Conduction
C.
Stefan-Boltzmann Law
D.
Kirchhoff's Law
Show solution
Solution
Fourier's Law of Heat Conduction states that the rate of heat transfer through a material is proportional to the temperature gradient.
Correct Answer:
B
— Fourier's Law of Heat Conduction
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Q. Which law states that the rate of heat transfer through a material is proportional to the negative gradient of temperature?
A.
Newton's Law of Cooling
B.
Fourier's Law of Heat Conduction
C.
Stefan-Boltzmann Law
D.
Kirchhoff's Law
Show solution
Solution
Fourier's Law of Heat Conduction states that the rate of heat transfer through a material is proportional to the negative gradient of temperature.
Correct Answer:
B
— Fourier's Law of Heat Conduction
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Q. Which law states that the rate of heat transfer through a material is proportional to the temperature difference? (2022)
A.
Newton's Law of Cooling
B.
Fourier's Law
C.
Stefan-Boltzmann Law
D.
Boyle's Law
Show solution
Solution
Fourier's Law states that the rate of heat transfer through a material is proportional to the temperature difference across it.
Correct Answer:
B
— Fourier's Law
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Q. Which law states that the total energy in an isolated system remains constant?
A.
Law of Conservation of Energy
B.
Newton's First Law
C.
Hooke's Law
D.
Ohm's Law
Show solution
Solution
The Law of Conservation of Energy states that the total energy in an isolated system remains constant.
Correct Answer:
A
— Law of Conservation of Energy
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Q. Which law states that the total energy of an isolated system remains constant?
A.
First law of thermodynamics
B.
Second law of thermodynamics
C.
Zeroth law of thermodynamics
D.
Third law of thermodynamics
Show solution
Solution
The first law of thermodynamics states that the total energy of an isolated system remains constant.
Correct Answer:
A
— First law of thermodynamics
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Q. Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction?
A.
First Law of Thermodynamics
B.
Second Law of Thermodynamics
C.
Hess's Law
D.
Gibbs Free Energy
Show solution
Solution
Hess's Law states that the total enthalpy change for a reaction is the same, regardless of the number of steps in the reaction.
Correct Answer:
C
— Hess's Law
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Q. Which law states that the total enthalpy change for a reaction is the same, regardless of the number of steps taken?
A.
First Law of Thermodynamics
B.
Second Law of Thermodynamics
C.
Hess's Law
D.
Gibbs Free Energy
Show solution
Solution
Hess's Law states that the total enthalpy change for a reaction is the same, regardless of the number of steps taken.
Correct Answer:
C
— Hess's Law
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Q. Which law states that the total entropy of an isolated system can never decrease over time?
A.
Zeroth Law
B.
First Law
C.
Second Law
D.
Third Law
Show solution
Solution
The Second Law of Thermodynamics states that the total entropy of an isolated system can never decrease over time.
Correct Answer:
C
— Second Law
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Q. Which law states that the total momentum of a closed system remains constant?
A.
Newton's First Law
B.
Newton's Second Law
C.
Conservation of Momentum
D.
Conservation of Energy
Show solution
Solution
The Conservation of Momentum states that in a closed system, the total momentum remains constant if no external forces act on it.
Correct Answer:
C
— Conservation of Momentum
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Q. Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its components?
A.
Dalton's Law
B.
Boyle's Law
C.
Charles's Law
D.
Avogadro's Law
Show solution
Solution
Dalton's Law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its components.
Correct Answer:
A
— Dalton's Law
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