JEE Main MCQ & Objective Questions

The JEE Main exam is a crucial step for students aspiring to enter prestigious engineering colleges in India. It tests not only knowledge but also the ability to apply concepts effectively. Practicing MCQs and objective questions is essential for scoring better, as it helps in familiarizing students with the exam pattern and enhances their problem-solving skills. Engaging with practice questions allows students to identify important questions and strengthen their exam preparation.

What You Will Practise Here

  • Fundamental concepts of Physics, Chemistry, and Mathematics
  • Key formulas and their applications in problem-solving
  • Important definitions and theories relevant to JEE Main
  • Diagrams and graphical representations for better understanding
  • Numerical problems and their step-by-step solutions
  • Previous years' JEE Main questions for real exam experience
  • Time management strategies while solving MCQs

Exam Relevance

The topics covered in JEE Main are not only significant for the JEE exam but also appear in various CBSE and State Board examinations. Many concepts are shared with the NEET syllabus, making them relevant across multiple competitive exams. Common question patterns include conceptual applications, numerical problems, and theoretical questions that assess a student's understanding of core subjects.

Common Mistakes Students Make

  • Misinterpreting the question stem, leading to incorrect answers
  • Neglecting units in numerical problems, which can change the outcome
  • Overlooking negative marking and not managing time effectively
  • Relying too heavily on rote memorization instead of understanding concepts
  • Failing to review and analyze mistakes from practice tests

FAQs

Question: How can I improve my speed in solving JEE Main MCQ questions?
Answer: Regular practice with timed quizzes and focusing on shortcuts can significantly enhance your speed.

Question: Are the JEE Main objective questions similar to previous years' papers?
Answer: Yes, many questions are based on previous years' patterns, so practicing them can be beneficial.

Question: What is the best way to approach JEE Main practice questions?
Answer: Start with understanding the concepts, then attempt practice questions, and finally review your answers to learn from mistakes.

Now is the time to take charge of your preparation! Dive into solving JEE Main MCQs and practice questions to test your understanding and boost your confidence for the exam.

Q. What happens to the viscosity of a gas as temperature increases?
  • A. Viscosity decreases
  • B. Viscosity increases
  • C. Viscosity remains constant
  • D. Viscosity fluctuates
Q. What happens to the viscosity of a liquid as temperature increases?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Varies unpredictably
Q. What happens to the viscosity of gases with an increase in temperature?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Varies randomly
Q. What happens to the voltage across a capacitor when it is fully charged?
  • A. It becomes zero
  • B. It equals the supply voltage
  • C. It becomes negative
  • D. It fluctuates
Q. What happens to the volume of a gas if its temperature is increased at constant pressure?
  • A. It decreases
  • B. It increases
  • C. It remains constant
  • D. It becomes zero
Q. What happens to the volume of a gas if the temperature is increased at constant pressure?
  • A. It decreases
  • B. It increases
  • C. It remains the same
  • D. It becomes zero
Q. What happens to the volume of a gas when its temperature is increased at constant pressure?
  • A. It decreases
  • B. It increases
  • C. It remains constant
  • D. It becomes zero
Q. What happens to the volume of a gas when the pressure is increased at constant temperature?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. What happens to the weight of an object when it is taken to a height equal to the radius of the Earth?
  • A. It becomes zero
  • B. It is halved
  • C. It is doubled
  • D. It remains the same
Q. What happens to the Young's modulus of a material as temperature increases?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Becomes zero
Q. What happens to the Young's modulus of a material when it is heated?
  • A. It increases
  • B. It decreases
  • C. It remains constant
  • D. It becomes zero
Q. What is Brewster's angle for a medium with a refractive index of 1.5?
  • A. 30 degrees
  • B. 45 degrees
  • C. 60 degrees
  • D. 53 degrees
Q. What is Brewster's angle?
  • A. The angle at which light is completely absorbed
  • B. The angle at which light is reflected with maximum polarization
  • C. The angle at which light refracts without any reflection
  • D. The angle at which light travels fastest
Q. What is denaturation of proteins?
  • A. The process of protein synthesis
  • B. The loss of protein function due to structural changes
  • C. The formation of peptide bonds
  • D. The folding of proteins into their functional shape
Q. What is Lenz's law?
  • A. The direction of induced current opposes the change in magnetic flux
  • B. The induced current flows in the same direction as the change in magnetic flux
  • C. The induced EMF is always positive
  • D. The magnetic field is always perpendicular to the current
Q. What is Poisson's ratio?
  • A. Lateral strain/Longitudinal strain
  • B. Longitudinal strain/Lateral strain
  • C. Stress/Strain
  • D. Strain/Stress
Q. What is Raoult's Law primarily used to describe?
  • A. The behavior of ideal gases
  • B. The vapor pressure of solutions
  • C. The boiling point elevation
  • D. The freezing point depression
Q. What is Raoult's Law primarily used to determine?
  • A. Vapor pressure of a solution
  • B. Boiling point elevation
  • C. Freezing point depression
  • D. Molarity of a solution
Q. What is self-inductance?
  • A. The ability of a coil to induce EMF in itself
  • B. The ability of a coil to induce EMF in another coil
  • C. The resistance of a coil to current flow
  • D. The capacitance of a coil
Q. What is self-induction?
  • A. Induction of EMF in a coil due to its own changing current
  • B. Induction of EMF in a coil due to an external magnetic field
  • C. Induction of current in a conductor due to a magnetic field
  • D. Induction of voltage in a capacitor
Q. What is surface tension?
  • A. Force per unit length
  • B. Energy per unit area
  • C. Pressure difference
  • D. Viscosity of a liquid
Q. What is the 75th percentile of the data set {10, 20, 30, 40, 50}?
  • A. 40
  • B. 30
  • C. 50
  • D. 20
Q. What is the 7th term of the sequence defined by a_n = 2^n + 3^n?
  • A. 2187
  • B. 243
  • C. 256
  • D. 729
Q. What is the acceleration due to gravity at a height equal to the radius of the Earth?
  • A. g/2
  • B. g/3
  • C. g/4
  • D. g/5
Q. What is the acceleration of a rolling object down an incline if the incline angle is θ?
  • A. g sin(θ)
  • B. g sin(θ)/2
  • C. g sin(θ)/3
  • D. g sin(θ)/4
Q. What is the angle between the lines 2x + 3y - 6 = 0 and 4x - y + 1 = 0?
  • A. 45 degrees
  • B. 60 degrees
  • C. 90 degrees
  • D. 30 degrees
Q. What is the angle between the lines represented by the equation 2x^2 + 3xy - 2y^2 = 0?
  • A. 45 degrees
  • B. 60 degrees
  • C. 90 degrees
  • D. 30 degrees
Q. What is the angle between the lines represented by the equation x^2 - 2xy + y^2 = 0?
  • A. 0 degrees
  • B. 45 degrees
  • C. 90 degrees
  • D. 135 degrees
Q. What is the angle between the lines represented by the equation x^2 - 6x + y^2 - 8y + 9 = 0?
  • A. 0 degrees
  • B. 45 degrees
  • C. 90 degrees
  • D. 135 degrees
Q. What is the angle between the lines y = 2x + 1 and y = -0.5x + 3?
  • A. 90 degrees
  • B. 60 degrees
  • C. 45 degrees
  • D. 30 degrees
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