Q. What is the voltage across a 5Ω resistor if a current of 3A flows through it? (2020)
A.
15V
B.
10V
C.
5V
D.
20V
Show solution
Solution
Using Ohm's law, V = IR = 3A * 5Ω = 15V.
Correct Answer:
A
— 15V
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Q. What is the work done by a force of 15 N acting at an angle of 60° while moving an object 4 m? (2021)
A.
30 J
B.
60 J
C.
45 J
D.
90 J
Show solution
Solution
Work = F × d × cos(θ) = 15 N × 4 m × cos(60°) = 15 × 4 × 0.5 = 30 J.
Correct Answer:
C
— 45 J
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Q. What is the work done by an ideal gas during an isobaric expansion if it expands from 2 L to 5 L at a pressure of 3 atm? (2022)
A.
9 J
B.
12 J
C.
15 J
D.
18 J
Show solution
Solution
Work done (W) = P * ΔV = 3 atm * (5 L - 2 L) = 3 atm * 3 L = 9 atm·L = 15 J (1 atm·L = 101.325 J)
Correct Answer:
C
— 15 J
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Q. What is the work done by an ideal gas during an isobaric expansion if the pressure is 5 atm and the volume changes from 2 L to 5 L? (2019)
A.
15 L·atm
B.
10 L·atm
C.
5 L·atm
D.
20 L·atm
Show solution
Solution
Work done (W) = PΔV = P(V_final - V_initial) = 5 atm * (5 L - 2 L) = 15 L·atm.
Correct Answer:
A
— 15 L·atm
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Q. What is the work done on a gas when it is compressed from 4 L to 2 L at a constant pressure of 2 atm?
A.
4 L·atm
B.
2 L·atm
C.
8 L·atm
D.
0 L·atm
Show solution
Solution
Work done (W) = P * ΔV = 2 atm * (2 L - 4 L) = 2 atm * (-2 L) = -4 L·atm (work done on the gas is positive).
Correct Answer:
A
— 4 L·atm
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Q. What is the work done on a gas when it is compressed from 5 L to 2 L at a constant pressure of 200 kPa? (2022)
A.
600 J
B.
800 J
C.
1000 J
D.
1200 J
Show solution
Solution
Work done (W) = P * ΔV = 200 kPa * (2 L - 5 L) = 200 kPa * (-3 L) = -600 J (work done on the gas).
Correct Answer:
C
— 1000 J
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Q. What is the work done when 1 mole of an ideal gas expands isothermally from 10 L to 20 L at 300 K? (R = 8.31 J/mol·K) (2023)
A.
0 J
B.
830 J
C.
1660 J
D.
2490 J
Show solution
Solution
Work done = nRT ln(Vf/Vi) = 1 mol × 8.31 J/mol·K × 300 K × ln(20/10) = 1660 J.
Correct Answer:
C
— 1660 J
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Q. What is the work done when 1 mole of an ideal gas expands isothermally from 10 L to 20 L at a temperature of 300 K? (2020)
A.
1.5 kJ
B.
2.5 kJ
C.
3.5 kJ
D.
4.5 kJ
Show solution
Solution
Work done (W) = nRT ln(Vf/Vi) = 1 mol * 8.314 J/(mol K) * 300 K * ln(20/10) = 2.5 kJ.
Correct Answer:
B
— 2.5 kJ
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Q. What is the work done when 1 mole of an ideal gas expands isothermally from 10 L to 20 L at 300 K? (2022)
A.
300 J
B.
600 J
C.
150 J
D.
0 J
Show solution
Solution
Work done W = nRT ln(Vf/Vi) = 1 * 8.314 * 300 * ln(20/10) = 600 J.
Correct Answer:
B
— 600 J
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Q. What is the work done when a 50 N force moves an object 3 m in the direction of the force?
A.
150 J
B.
100 J
C.
50 J
D.
200 J
Show solution
Solution
Work done (W) = F × d = 50 N × 3 m = 150 J.
Correct Answer:
A
— 150 J
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Q. What is the work done when a force of 10 N moves an object 5 m in the direction of the force? (2016)
A.
50 J
B.
25 J
C.
10 J
D.
5 J
Show solution
Solution
Work done (W) = Force × Distance = 10 N × 5 m = 50 J.
Correct Answer:
A
— 50 J
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Q. What is the work done when a force of 15 N moves an object 3 m at an angle of 0 degrees to the direction of motion?
A.
45 J
B.
30 J
C.
60 J
D.
75 J
Show solution
Solution
Work = Force * Distance * cos(θ) = 15 N * 3 m * cos(0°) = 45 J.
Correct Answer:
A
— 45 J
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Q. What is the work done when a force of 15 N moves an object 3 m at an angle of 60° to the direction of the force?
A.
22.5 J
B.
30 J
C.
36.5 J
D.
45 J
Show solution
Solution
W = F × d × cos(θ) = 15 N × 3 m × cos(60°) = 15 × 3 × 0.5 = 22.5 J.
Correct Answer:
A
— 22.5 J
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Q. What is the work done when a force of 15 N moves an object 4 m in the direction of the force?
A.
60 J
B.
30 J
C.
45 J
D.
75 J
Show solution
Solution
Work done = Force × Distance = 15 N × 4 m = 60 J
Correct Answer:
A
— 60 J
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Q. Which law relates the magnetic field around a conductor to the current flowing through it? (2023)
A.
Faraday's Law
B.
Ampere's Law
C.
Ohm's Law
D.
Lenz's Law
Show solution
Solution
Ampere's Law relates the magnetic field around a conductor to the current flowing through it.
Correct Answer:
B
— Ampere's Law
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Q. Which law states that the total momentum of a closed system remains constant?
A.
Newton's First Law
B.
Newton's Second Law
C.
Conservation of Momentum
D.
Conservation of Energy
Show solution
Solution
The Conservation of Momentum states that in a closed system, the total momentum remains constant if no external forces act on it.
Correct Answer:
C
— Conservation of Momentum
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Q. Which of the following correctly describes the relationship between gravitational force and distance?
A.
Directly proportional
B.
Inversely proportional
C.
Exponential
D.
Linear
Show solution
Solution
Gravitational force is inversely proportional to the square of the distance between the centers of two masses.
Correct Answer:
B
— Inversely proportional
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Q. Which of the following is a base quantity? (2020)
A.
Force
B.
Energy
C.
Length
D.
Pressure
Show solution
Solution
Length is a base quantity in the SI system, while force, energy, and pressure are derived quantities.
Correct Answer:
C
— Length
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Q. Which of the following is a base unit in the SI system? (2020)
A.
Liter
B.
Meter
C.
Newton
D.
Joule
Show solution
Solution
Meter is a base unit in the SI system, while liter, newton, and joule are derived units.
Correct Answer:
B
— Meter
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Q. Which of the following is the correct dimensional formula for acceleration? (2022)
A.
[M^0 L^1 T^-2]
B.
[M^1 L^0 T^-2]
C.
[M^1 L^1 T^-1]
D.
[M^0 L^0 T^-2]
Show solution
Solution
Acceleration is defined as the change in velocity per unit time, so its dimensional formula is [M^0 L^1 T^-2].
Correct Answer:
A
— [M^0 L^1 T^-2]
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Q. Which of the following is the correct dimensional formula for energy? (2023)
A.
[M^1 L^2 T^-2]
B.
[M^1 L^1 T^-1]
C.
[M^0 L^2 T^-1]
D.
[M^2 L^1 T^-2]
Show solution
Solution
Energy has the dimensional formula [M^1 L^2 T^-2], as it is defined as work done, which is force times distance.
Correct Answer:
A
— [M^1 L^2 T^-2]
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Q. Which of the following is the correct dimensional formula for frequency? (2021)
A.
[M^0 L^0 T^-1]
B.
[M^0 L^1 T^-1]
C.
[M^1 L^0 T^-1]
D.
[M^0 L^0 T^1]
Show solution
Solution
Frequency has the dimensional formula [M^0 L^0 T^-1].
Correct Answer:
A
— [M^0 L^0 T^-1]
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Q. Which of the following is the unit of pressure? (2023)
A.
Newton
B.
Pascal
C.
Joule
D.
Watt
Show solution
Solution
The unit of pressure is Pascal (Pa), which is equivalent to N/m².
Correct Answer:
B
— Pascal
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Q. Which of the following is true about the law of conservation of energy?
A.
Energy can be created
B.
Energy can be destroyed
C.
Energy can be transformed
D.
Energy is always lost
Show solution
Solution
The law of conservation of energy states that energy cannot be created or destroyed, but it can be transformed from one form to another.
Correct Answer:
C
— Energy can be transformed
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Q. Which of the following materials is a ferromagnet? (2023)
A.
Copper
B.
Aluminum
C.
Iron
D.
Gold
Show solution
Solution
Iron is a ferromagnetic material, which means it can be magnetized and retains its magnetic properties.
Correct Answer:
C
— Iron
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Q. Which of the following materials is a ferromagnetic material? (2020)
A.
Copper
B.
Aluminum
C.
Iron
D.
Gold
Show solution
Solution
Iron is a ferromagnetic material, which means it can be magnetized and has a high magnetic permeability.
Correct Answer:
C
— Iron
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Q. Which of the following materials is considered ferromagnetic? (2022)
A.
Copper
B.
Aluminum
C.
Iron
D.
Gold
Show solution
Solution
Iron is considered a ferromagnetic material, which can be magnetized and retains its magnetism.
Correct Answer:
C
— Iron
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Q. Which of the following quantities has no dimensions? (2019)
A.
Force
B.
Energy
C.
Angle
D.
Pressure
Show solution
Solution
Angle is a pure number and has no dimensions, while force, energy, and pressure all have dimensions.
Correct Answer:
C
— Angle
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Q. Which of the following quantities is not a scalar? (2021)
A.
Mass
B.
Temperature
C.
Velocity
D.
Speed
Show solution
Solution
Velocity is a vector quantity as it has both magnitude and direction, while mass, temperature, and speed are scalar quantities.
Correct Answer:
C
— Velocity
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Q. Which of the following statements about thermal conductivity is true? (2021)
A.
It is higher in gases than in solids
B.
It is a measure of a material's ability to conduct heat
C.
It increases with temperature
D.
It is independent of material type
Show solution
Solution
Thermal conductivity is a measure of a material's ability to conduct heat; it varies with material type.
Correct Answer:
B
— It is a measure of a material's ability to conduct heat
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Showing 811 to 840 of 846 (29 Pages)
Physics (MHT-CET) MCQ & Objective Questions
Physics is a crucial subject for students preparing for the MHT-CET exam, as it forms the foundation for many scientific concepts. Mastering Physics through MCQs and objective questions not only enhances your understanding but also significantly boosts your exam scores. Regular practice with these questions helps you identify important topics and improves your problem-solving skills, making it an essential part of your exam preparation.
What You Will Practise Here
Mechanics: Laws of Motion, Work, Energy, and Power
Thermodynamics: Laws, Heat Transfer, and Applications
Waves and Oscillations: Types of Waves, Sound Waves, and Properties
Optics: Reflection, Refraction, and Optical Instruments
Electromagnetism: Electric Fields, Magnetic Fields, and Circuits
Modern Physics: Quantum Theory, Atomic Structure, and Nuclear Physics
Key Formulas and Definitions: Essential for quick revisions
Exam Relevance
Physics is a significant component of various examinations including CBSE, State Boards, NEET, and JEE. In these exams, questions often focus on conceptual understanding and application of theories. Common patterns include numerical problems, conceptual MCQs, and application-based questions that test your grasp of fundamental principles. Familiarity with these patterns through practice will enhance your confidence and performance on exam day.
Common Mistakes Students Make
Misunderstanding the application of formulas in different contexts.
Overlooking units and dimensions, leading to incorrect answers.
Confusing similar concepts, such as velocity and acceleration.
Neglecting to read questions carefully, resulting in misinterpretation.
Rushing through calculations without checking for errors.
FAQs
Question: What are the best ways to prepare for Physics (MHT-CET) MCQs?Answer: Regular practice with previous years' question papers and mock tests, along with a focus on understanding concepts, is key to success.
Question: How can I improve my speed in solving Physics MCQs?Answer: Time yourself while practicing and focus on solving simpler questions first to build confidence and speed.
Start your journey towards mastering Physics today! Solve practice MCQs and test your understanding to ensure you are well-prepared for the MHT-CET exam. Your success in Physics is just a question away!
