Q. Which of the following is NOT a type of modulus of elasticity?
A.
Young's modulus
B.
Shear modulus
C.
Bulk modulus
D.
Tensile modulus
Show solution
Solution
Tensile modulus is not a standard term; the correct terms are Young's modulus, shear modulus, and bulk modulus.
Correct Answer:
D
— Tensile modulus
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Q. Which of the following is NOT a type of stress?
A.
Tensile stress
B.
Compressive stress
C.
Shear stress
D.
Thermal stress
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Solution
Thermal stress is a result of temperature changes, while tensile, compressive, and shear stresses are types of mechanical stress.
Correct Answer:
D
— Thermal stress
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Q. Which of the following is NOT a unit of power?
A.
Horsepower
B.
Kilowatt
C.
Joule
D.
Watt
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Solution
Joule is a unit of energy, not power. Power is measured in Watts, Kilowatts, and Horsepower.
Correct Answer:
C
— Joule
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Q. Which of the following is NOT a use of a potentiometer?
A.
Measuring emf of a cell.
B.
Comparing emf of two cells.
C.
Measuring resistance directly.
D.
Calibrating voltmeters.
Show solution
Solution
A potentiometer is not used for direct resistance measurement; it is primarily used for voltage measurements.
Correct Answer:
C
— Measuring resistance directly.
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Q. Which of the following is the best conductor of heat?
A.
Air
B.
Water
C.
Copper
D.
Wood
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Solution
Copper is known to be one of the best conductors of heat among the given options.
Correct Answer:
C
— Copper
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Q. Which of the following is the correct conversion factor from kilometers to meters?
A.
1000
B.
0.1
C.
0.001
D.
10
Show solution
Solution
1 kilometer is equal to 1000 meters, hence the conversion factor is 1000.
Correct Answer:
A
— 1000
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Q. Which of the following is the correct conversion of 1 kilometer to meters?
A.
100 m
B.
1000 m
C.
10 m
D.
0.1 m
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Solution
1 kilometer is equal to 1000 meters.
Correct Answer:
B
— 1000 m
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Q. Which of the following is the correct conversion of 1 km to meters?
A.
100 m
B.
1000 m
C.
10 m
D.
0.1 m
Show solution
Solution
1 kilometer is equal to 1000 meters.
Correct Answer:
B
— 1000 m
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Q. Which of the following is the correct dimensional formula for electric charge?
A.
[M^1 L^2 T^-3 A^-1]
B.
[M^0 L^0 T^0 A^1]
C.
[M^0 L^1 T^-2 A^1]
D.
[M^1 L^1 T^-2 A^-1]
Show solution
Solution
The dimensional formula for electric charge is [M^1 L^2 T^-3 A^-1], derived from the definition of current.
Correct Answer:
A
— [M^1 L^2 T^-3 A^-1]
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Q. Which of the following is the correct representation of 0.00045 in scientific notation?
A.
4.5 × 10^-4
B.
4.5 × 10^-3
C.
45 × 10^-5
D.
45 × 10^-4
Show solution
Solution
0.00045 can be expressed in scientific notation as 4.5 × 10^-4.
Correct Answer:
A
— 4.5 × 10^-4
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Q. Which of the following is the correct representation of 0.0004500 in scientific notation?
A.
4.500 x 10^-4
B.
4.5 x 10^-4
C.
4.5000 x 10^-4
D.
4.5 x 10^-5
Show solution
Solution
In scientific notation, all non-zero digits and any trailing zeros after the decimal point are significant. Therefore, 0.0004500 is expressed as 4.500 x 10^-4.
Correct Answer:
A
— 4.500 x 10^-4
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Q. Which of the following is the correct representation of 0.0004500 in terms of significant figures?
A.
4.500 x 10^-4
B.
4.5 x 10^-4
C.
0.00045
D.
0.000450
Show solution
Solution
In scientific notation, 0.0004500 is represented as 4.500 x 10^-4, which retains all significant figures (4, 5, 0, 0).
Correct Answer:
A
— 4.500 x 10^-4
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Q. Which of the following is the correct representation of 0.00056 in scientific notation?
A.
5.6 x 10^-4
B.
56 x 10^-5
C.
0.56 x 10^-3
D.
5.6 x 10^3
Show solution
Solution
0.00056 in scientific notation is correctly represented as 5.6 x 10^-4.
Correct Answer:
A
— 5.6 x 10^-4
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Q. Which of the following is the correct representation of the speed of light?
A.
3.00 × 10^8 m/s
B.
3.00 × 10^6 m/s
C.
3.00 × 10^10 m/s
D.
3.00 × 10^9 m/s
Show solution
Solution
The speed of light in vacuum is approximately 3.00 × 10^8 m/s.
Correct Answer:
A
— 3.00 × 10^8 m/s
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Q. Which of the following is the correct unit for measuring area?
A.
Square meter
B.
Cubic meter
C.
Liter
D.
Joule
Show solution
Solution
The correct unit for measuring area is square meter.
Correct Answer:
A
— Square meter
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Q. Which of the following is the correct unit for measuring electric charge?
A.
Coulomb
B.
Ampere
C.
Volt
D.
Ohm
Show solution
Solution
The SI unit for electric charge is Coulomb (C).
Correct Answer:
A
— Coulomb
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Q. Which of the following is the correct unit for measuring electric current?
A.
Volt
B.
Ohm
C.
Ampere
D.
Watt
Show solution
Solution
The SI unit for measuring electric current is the Ampere.
Correct Answer:
C
— Ampere
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Q. Which of the following is the correct unit for measuring energy?
A.
Joule
B.
Newton
C.
Watt
D.
Pascal
Show solution
Solution
The correct unit for measuring energy is Joule (J).
Correct Answer:
A
— Joule
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Q. Which of the following is the output of the expression NOT (A AND B) when A = 1 and B = 1?
A.
0
B.
1
C.
2
D.
Undefined
Show solution
Solution
First, evaluate A AND B which is 1 AND 1 = 1. Then NOT 1 = 0.
Correct Answer:
A
— 0
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Q. Which of the following is the truth table for an AND gate?
A.
00, 01, 10, 11
B.
00, 01, 11, 10
C.
00, 10, 01, 11
D.
00, 11, 01, 10
Show solution
Solution
The truth table for an AND gate is: 00 -> 0, 01 -> 0, 10 -> 0, 11 -> 1.
Correct Answer:
A
— 00, 01, 10, 11
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Q. Which of the following is true about elastic potential energy stored in a stretched wire?
A.
It is proportional to the square of the elongation
B.
It is proportional to the elongation
C.
It is independent of the elongation
D.
It is inversely proportional to the elongation
Show solution
Solution
The elastic potential energy stored in a stretched wire is given by U = (1/2) * Y * (ΔL^2 / L), which is proportional to the square of the elongation.
Correct Answer:
A
— It is proportional to the square of the elongation
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Q. Which of the following is true about significant figures?
A.
All zeros are significant
B.
Leading zeros are significant
C.
Trailing zeros in a whole number are significant
D.
Trailing zeros in a decimal are significant
Show solution
Solution
Trailing zeros in a decimal are significant.
Correct Answer:
D
— Trailing zeros in a decimal are significant
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Q. Which of the following is true about the escape velocity from the surface of the Earth?
A.
It is independent of the mass of the object
B.
It is dependent on the mass of the Earth
C.
It is dependent on the radius of the Earth
D.
All of the above
Show solution
Solution
Escape velocity is independent of the mass of the object, but it depends on the mass and radius of the Earth.
Correct Answer:
D
— All of the above
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Q. Which of the following is true about the number 2500?
A.
It has 2 significant figures
B.
It has 3 significant figures
C.
It has 4 significant figures
D.
It has infinite significant figures
Show solution
Solution
2500 has 2 significant figures unless specified with a decimal point.
Correct Answer:
A
— It has 2 significant figures
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Q. Which of the following is true about the period of a satellite in a low Earth orbit compared to a satellite in a high Earth orbit?
A.
The period is longer for low Earth orbit
B.
The period is shorter for low Earth orbit
C.
The periods are the same
D.
It depends on the satellite's mass
Show solution
Solution
The period of a satellite in a low Earth orbit is shorter than that of a satellite in a high Earth orbit due to the stronger gravitational pull.
Correct Answer:
B
— The period is shorter for low Earth orbit
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Q. Which of the following is true about the period of a satellite in a low Earth orbit compared to a satellite in a geostationary orbit?
A.
The period is longer for the low Earth orbit
B.
The period is shorter for the low Earth orbit
C.
The periods are the same
D.
The period depends on the satellite's mass
Show solution
Solution
A satellite in a low Earth orbit has a shorter orbital period compared to a geostationary satellite due to its closer proximity to Earth.
Correct Answer:
B
— The period is shorter for the low Earth orbit
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Q. Which of the following is true for a satellite in a low Earth orbit?
A.
It has a very high orbital speed
B.
It has a very low orbital speed
C.
It does not experience any gravitational force
D.
It is not affected by atmospheric drag
Show solution
Solution
A satellite in a low Earth orbit has a very high orbital speed due to the proximity to the Earth and the gravitational pull.
Correct Answer:
A
— It has a very high orbital speed
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Q. Which of the following liquids has the highest surface tension at room temperature?
A.
Water
B.
Ethanol
C.
Mercury
D.
Benzene
Show solution
Solution
Mercury has a very high surface tension due to strong cohesive forces between its molecules, higher than that of water, ethanol, and benzene.
Correct Answer:
C
— Mercury
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Q. Which of the following materials can be used to polarize light?
A.
Glass
B.
Polaroid film
C.
Water
D.
Air
Show solution
Solution
Polaroid film is specifically designed to polarize light by allowing only light waves oscillating in a certain direction to pass through.
Correct Answer:
B
— Polaroid film
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Q. Which of the following materials has the highest resistivity?
A.
Copper
B.
Aluminum
C.
Silver
D.
Rubber
Show solution
Solution
Rubber is an insulator and has a much higher resistivity compared to metals like copper, aluminum, and silver.
Correct Answer:
D
— Rubber
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Showing 4771 to 4800 of 5000 (167 Pages)
Physics Syllabus (JEE Main) MCQ & Objective Questions
The Physics Syllabus for JEE Main is crucial for students aiming to excel in their exams. Understanding this syllabus not only helps in grasping fundamental concepts but also enhances problem-solving skills through practice. Engaging with MCQs and objective questions is essential for effective exam preparation, as it allows students to identify important questions and strengthen their knowledge base.
What You Will Practise Here
Mechanics: Laws of Motion, Work, Energy, and Power
Thermodynamics: Laws of Thermodynamics, Heat Transfer
Waves and Oscillations: Simple Harmonic Motion, Wave Properties
Electromagnetism: Electric Fields, Magnetic Fields, and Circuits
Optics: Reflection, Refraction, and Optical Instruments
Modern Physics: Quantum Theory, Atomic Models, and Nuclear Physics
Fluid Mechanics: Properties of Fluids, Bernoulli's Principle
Exam Relevance
The Physics Syllabus (JEE Main) is integral to various examinations, including CBSE, State Boards, and competitive exams like NEET and JEE. Questions often focus on conceptual understanding and application of theories. Common patterns include numerical problems, conceptual MCQs, and assertion-reason type questions, which test both knowledge and analytical skills.
Common Mistakes Students Make
Misinterpreting the question stem, leading to incorrect answers.
Neglecting units and dimensions in calculations.
Overlooking the significance of diagrams in understanding concepts.
Confusing similar concepts, such as velocity and acceleration.
Failing to apply formulas correctly in different contexts.
FAQs
Question: What are the key topics in the Physics Syllabus for JEE Main?Answer: Key topics include Mechanics, Thermodynamics, Waves, Electromagnetism, Optics, Modern Physics, and Fluid Mechanics.
Question: How can I improve my performance in Physics MCQs?Answer: Regular practice of MCQs, understanding concepts deeply, and revising important formulas can significantly enhance your performance.
Start solving practice MCQs today to test your understanding of the Physics Syllabus (JEE Main). This will not only boost your confidence but also prepare you effectively for your upcoming exams. Remember, consistent practice is the key to success!
