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 the diameter of the potentiometer wire on its resistance?
A.
Resistance increases
B.
Resistance decreases
C.
Resistance remains the same
D.
Resistance becomes zero
Solution
Increasing the diameter of the potentiometer wire decreases its resistance, as resistance is inversely proportional to the cross-sectional area of the wire.
Q. What is the effect of increasing the frequency on the impedance of a series RLC circuit?
A.
Increases
B.
Decreases
C.
Remains constant
D.
Depends on R, L, and C
Solution
The impedance (Z) of a series RLC circuit depends on the values of resistance (R), inductance (L), capacitance (C), and frequency (f). As frequency increases, the inductive reactance increases and capacitive reactance decreases, affecting the total impedance.
Q. What is the effect of increasing the mass of a satellite on its orbital radius if the orbital speed is to remain constant?
A.
The orbital radius must increase
B.
The orbital radius must decrease
C.
The orbital radius remains the same
D.
It has no effect on the orbital radius
Solution
If the orbital speed is to remain constant, increasing the mass of the satellite requires an increase in the orbital radius due to the balance of gravitational and centripetal forces.
Correct Answer:
A
— The orbital radius must increase
Q. What is the effect of increasing the mass of a satellite on its orbital radius, assuming the speed remains constant?
A.
The orbital radius increases
B.
The orbital radius decreases
C.
The orbital radius remains the same
D.
It depends on the gravitational force
Solution
The mass of the satellite does not affect the orbital radius if the speed is constant, as the gravitational force and centripetal force balance each other.
Correct Answer:
C
— The orbital radius remains the same
Q. What is the effect of increasing the mass of a satellite on its orbital speed?
A.
Increases the orbital speed
B.
Decreases the orbital speed
C.
No effect on orbital speed
D.
Depends on the altitude
Solution
The orbital speed of a satellite depends on the mass of the Earth and the radius of the orbit, but not on the mass of the satellite itself. Therefore, increasing the mass of the satellite has no effect on its orbital speed.