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 is the effect of increasing temperature on the rate of a chemical reaction?
  • A. Decreases the rate
  • B. Increases the rate
  • C. No effect
  • D. Depends on the reaction
Q. What is the effect of increasing temperature on the solubility of most solid solutes in water?
  • A. Increases solubility
  • B. Decreases solubility
  • C. No effect
  • D. Depends on the solute
Q. What is the effect of increasing temperature on the speed of sound in air?
  • A. Increases
  • B. Decreases
  • C. Remains constant
  • D. Depends on pressure
Q. What is the effect of increasing temperature on the vapor pressure of a liquid?
  • A. It decreases
  • B. It remains constant
  • C. It increases
  • D. It fluctuates
Q. What is the effect of increasing temperature on the vapor pressure of a solution?
  • A. It decreases the vapor pressure.
  • B. It increases the vapor pressure.
  • C. It has no effect.
  • D. It causes the vapor pressure to become zero.
Q. What is the effect of increasing temperature on the vapor pressure of a solvent according to Raoult's Law?
  • A. It decreases the vapor pressure.
  • B. It increases the vapor pressure.
  • C. It has no effect.
  • D. It depends on the solute.
Q. What is the effect of increasing temperature on the viscosity of a liquid?
  • A. Increases viscosity
  • B. Decreases viscosity
  • C. No effect
  • D. Depends on the liquid
Q. What is the effect of increasing tension on the speed of a wave traveling along a string?
  • A. Increases speed
  • B. Decreases speed
  • C. No effect
  • D. Depends on the mass
Q. What is the effect of increasing the altitude of a satellite on its orbital period?
  • A. It decreases
  • B. It increases
  • C. It remains the same
  • D. It becomes zero
Q. What is the effect of increasing the amplitude of a sound wave?
  • A. Increases pitch
  • B. Increases loudness
  • C. Decreases frequency
  • D. Decreases speed
Q. What is the effect of increasing the amplitude of a wave?
  • A. Increases frequency
  • B. Increases speed
  • C. Increases energy
  • D. Decreases wavelength
Q. What is the effect of increasing the angle of incidence beyond the critical angle?
  • A. Increased refraction
  • B. Decreased reflection
  • C. Total internal reflection
  • D. No effect
Q. What is the effect of increasing the angle of incidence beyond the critical angle in total internal reflection?
  • A. Increased intensity of reflected light
  • B. Decreased intensity of reflected light
  • C. No effect on intensity
  • D. Light is transmitted into the second medium
Q. What is the effect of increasing the area of a loop in a uniform magnetic field on the magnetic flux?
  • A. Magnetic flux increases
  • B. Magnetic flux decreases
  • C. Magnetic flux remains constant
  • D. Magnetic flux becomes zero
Q. What is the effect of increasing the bandwidth of a communication channel?
  • A. Increased data rate
  • B. Decreased data rate
  • C. No effect on data rate
  • D. Increased noise
Q. What is the effect of increasing the capacitance in a capacitor in an AC circuit on the current?
  • A. Increases current
  • B. Decreases current
  • C. No effect
  • D. Current becomes zero
Q. What is the effect of increasing the capacitance in an AC circuit on the capacitive reactance?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. What is the effect of increasing the capacitance in an AC circuit on the phase angle between voltage and current?
  • A. Increases phase angle
  • B. Decreases phase angle
  • C. No effect
  • D. Phase angle becomes 90 degrees
Q. What is the effect of increasing the carbon chain length on the acidity of carboxylic acids?
  • A. Increases acidity
  • B. Decreases acidity
  • C. No effect
  • D. Varies with structure
Q. What is the effect of increasing the carbon chain length on the boiling point of aldehydes?
  • A. Decreases
  • B. Increases
  • C. Remains the same
  • D. Varies randomly
Q. What is the effect of increasing the concentration of a reactant in a first-order reaction?
  • A. Rate increases linearly
  • B. Rate decreases
  • C. Rate remains constant
  • D. Rate increases exponentially
Q. What is the effect of increasing the concentration of a solute on the freezing point of a solution?
  • A. Freezing point increases
  • B. Freezing point decreases
  • C. No effect
  • D. Depends on the solute
Q. What is the effect of increasing the concentration of reactants on the rate of a reaction?
  • A. Rate decreases
  • B. Rate increases
  • C. Rate remains constant
  • D. Rate becomes zero
Q. What is the effect of increasing the cross-sectional area of a conductor on its resistance?
  • A. Increases resistance
  • B. Decreases resistance
  • C. No effect
  • D. Depends on the material
Q. What is the effect of increasing the current in a coil on the magnetic field strength?
  • A. Increases
  • B. Decreases
  • C. No effect
  • D. Depends on the coil material
Q. What is the effect of increasing the current in a solenoid on the magnetic field strength inside it?
  • A. Increases the magnetic field strength
  • B. Decreases the magnetic field strength
  • C. No effect on the magnetic field strength
  • D. Reverses the direction of the magnetic field
Q. What is the effect of increasing the current in a solenoid on the magnetic field inside it?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. What is the effect of increasing the current in a solenoid on the magnetic field strength?
  • A. Decreases the magnetic field strength
  • B. Increases the magnetic field strength
  • C. Has no effect
  • D. Reverses the magnetic field direction
Q. What is the effect of increasing the current in a wire on the magnetic field around it?
  • A. Increases the magnetic field
  • B. Decreases the magnetic field
  • C. No effect on the magnetic field
  • D. Reverses the direction of the magnetic field
Q. What is the effect of increasing the curvature of a lens on its focal length?
  • A. Focal length increases
  • B. Focal length decreases
  • C. Focal length remains the same
  • D. Focal length becomes zero
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