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. In which of the following scenarios would you expect a fluid to have lower viscosity?
  • A. At lower temperatures
  • B. At higher temperatures
  • C. Under high pressure
  • D. In a narrow pipe
Q. In which of the following scenarios would you expect a fluid to have the lowest viscosity?
  • A. High temperature
  • B. Low temperature
  • C. High pressure
  • D. Low pressure
Q. In which of the following scenarios would you expect a liquid to have the highest viscosity?
  • A. At high temperatures
  • B. At low temperatures
  • C. When mixed with gases
  • D. When agitated
Q. In which of the following scenarios would you expect to observe a decrease in viscosity?
  • A. Cooling a liquid
  • B. Heating a liquid
  • C. Increasing pressure
  • D. Adding a solute
Q. In which of the following scenarios would you expect to see the effects of viscosity most prominently?
  • A. A river flowing rapidly
  • B. Oil pouring from a bottle
  • C. Air moving around a plane
  • D. Water boiling
Q. In which of the following species does the molecular orbital configuration show a paramagnetic behavior?
  • A. N2
  • B. O2
  • C. F2
  • D. Ne2
Q. In which of the following states does a liquid exhibit the highest density?
  • A. At low temperatures
  • B. At high temperatures
  • C. At critical temperature
  • D. At boiling point
Q. In which of the following states of matter do particles have the least freedom of movement?
  • A. Solid
  • B. Liquid
  • C. Gas
  • D. Plasma
Q. In which process does a gas do work on its surroundings?
  • A. Isothermal expansion
  • B. Adiabatic compression
  • C. Isochoric process
  • D. Isobaric process
Q. In which process does heat transfer occur due to the movement of fluid?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Insulation
Q. In which process does heat transfer occur without any physical movement of the material?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. All of the above
Q. In which process does the entropy of the system decrease?
  • A. Freezing of water
  • B. Evaporation of water
  • C. Sublimation of dry ice
  • D. Dissolving salt in water
Q. In which scenario does heat transfer occur through both conduction and convection?
  • A. A hot cup of coffee cooling down
  • B. A metal rod heated at one end
  • C. A warm room losing heat to the outside
  • D. A block of ice melting
Q. In which scenario is light most likely to be polarized?
  • A. When it passes through a prism
  • B. When it reflects off a lake
  • C. When it travels through air
  • D. When it passes through a lens
Q. In which scenario would the frictional force be at its maximum?
  • A. When an object is at rest
  • B. When an object is sliding
  • C. When an object is rolling
  • D. When an object is in free fall
Q. In which scenario would the frictional force be zero?
  • A. A block sliding down a frictionless ramp.
  • B. A block at rest on a flat surface.
  • C. A block moving on a rough surface.
  • D. A block in free fall.
Q. In which scenario would the Gibbs Free Energy of a system be at its minimum?
  • A. At equilibrium
  • B. At the start of a reaction
  • C. At maximum temperature
  • D. At maximum pressure
Q. In which scenario would total internal reflection NOT occur?
  • A. Light traveling from glass to air at a steep angle.
  • B. Light traveling from water to air at a shallow angle.
  • C. Light traveling from diamond to air at a high angle.
  • D. Light traveling from air to water at any angle.
Q. In which scenario would ΔG = 0?
  • A. At the start of a reaction.
  • B. At equilibrium.
  • C. When the reaction is spontaneous.
  • D. When the reaction is non-spontaneous.
Q. In which scenario would ΔG be equal to ΔH?
  • A. At absolute zero.
  • B. When ΔS = 0.
  • C. For a spontaneous reaction.
  • D. For an endothermic reaction.
Q. In which scenario would ΔG be zero?
  • A. At standard conditions
  • B. At equilibrium
  • C. In a spontaneous reaction
  • D. In a non-spontaneous reaction
Q. In which state of matter do molecules have the least freedom of movement?
  • A. Solid
  • B. Liquid
  • C. Gas
  • D. Plasma
Q. In which state of matter do particles have the highest kinetic energy?
  • A. Solid
  • B. Liquid
  • C. Gas
  • D. Plasma
Q. In which type of reaction is the change in enthalpy equal to the heat absorbed or released at constant pressure?
  • A. Endothermic reaction
  • B. Exothermic reaction
  • C. Isothermal reaction
  • D. Adiabatic reaction
Q. In Young's double-slit experiment, if the distance between the slits is 0.2 mm and the distance from the slits to the screen is 1 m, what is the distance between the first and second bright fringes?
  • A. 0.1 mm
  • B. 0.2 mm
  • C. 0.4 mm
  • D. 0.6 mm
Q. In Young's double-slit experiment, if the distance between the slits is 0.2 mm and the distance to the screen is 1 m, what is the fringe width if the wavelength of light used is 500 nm?
  • A. 0.1 mm
  • B. 0.2 mm
  • C. 0.5 mm
  • D. 0.8 mm
Q. In Young's double-slit experiment, if the distance between the slits is doubled while keeping the wavelength constant, what happens to the fringe width?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. In Young's double-slit experiment, if the distance between the slits is doubled, what happens to the fringe width?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. Is the function f(x) = x^2 - 2x + 1 differentiable at x = 1?
  • A. Yes
  • B. No
  • C. Only from the left
  • D. Only from the right
Q. Is the function f(x) = x^2 - 4x + 4 differentiable at x = 2?
  • A. Yes
  • B. No
  • C. Only from the left
  • D. Only from the right
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