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 magnetic field inside a solenoid when the current through it is increased?
A.
It decreases
B.
It remains constant
C.
It increases
D.
It becomes zero
Solution
The magnetic field inside a solenoid is directly proportional to the current flowing through it, so increasing the current increases the magnetic field.
Q. What happens to the magnetic field strength if the distance from a long straight conductor is doubled?
A.
It doubles
B.
It halves
C.
It quadruples
D.
It becomes zero
Solution
The magnetic field strength around a long straight conductor is inversely proportional to the distance from the conductor. Therefore, if the distance is doubled, the magnetic field strength halves.
Q. What happens to the magnetic field strength inside a long solenoid when the current through it is increased?
A.
It decreases
B.
It remains constant
C.
It increases
D.
It becomes zero
Solution
The magnetic field strength inside a long solenoid is directly proportional to the current flowing through it; thus, it increases with an increase in current.
Q. What happens to the number of emitted electrons if the intensity of light is increased while keeping the frequency above the threshold?
A.
The number of emitted electrons decreases
B.
The number of emitted electrons increases
C.
The energy of each emitted electron increases
D.
No electrons are emitted
Solution
Increasing the intensity of light increases the number of photons incident on the surface, leading to more emitted electrons, provided the frequency is above the threshold.
Correct Answer:
B
— The number of emitted electrons increases
Q. What happens to the number of emitted electrons if the intensity of the light is increased while keeping the frequency above the threshold?
A.
The number of emitted electrons decreases
B.
The number of emitted electrons increases
C.
The energy of each emitted electron increases
D.
No effect on the number of emitted electrons
Solution
Increasing the intensity of light increases the number of photons, which in turn increases the number of emitted electrons, provided the frequency is above the threshold.
Correct Answer:
B
— The number of emitted electrons increases
Q. What happens to the pressure of an ideal gas if its volume is halved while keeping the temperature constant?
A.
Pressure remains the same
B.
Pressure doubles
C.
Pressure halves
D.
Pressure quadruples
Solution
According to Boyle's law, for a given amount of gas at constant temperature, pressure is inversely proportional to volume. Halving the volume doubles the pressure.
