Q. The magnetic field due to a straight current-carrying conductor at a distance r is given by which formula? (2022)
A.
B = μ₀I/2πr
B.
B = μ₀I/r
C.
B = μ₀I/4πr²
D.
B = μ₀I/2r
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Solution
The magnetic field (B) at a distance r from a straight current-carrying conductor is given by B = μ₀I/2πr.
Correct Answer:
A
— B = μ₀I/2πr
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Q. The magnetic field due to a straight current-carrying conductor decreases with distance from the wire. What is the relationship? (2019)
A.
Inversely proportional to distance
B.
Directly proportional to distance
C.
Inversely proportional to the square of the distance
D.
Directly proportional to the square of the distance
Show solution
Solution
The magnetic field (B) around a straight current-carrying conductor is inversely proportional to the distance (r) from the wire, given by B ∝ 1/r.
Correct Answer:
C
— Inversely proportional to the square of the distance
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Q. The magnetic field inside a long solenoid is given by which of the following expressions? (2020)
A.
μ₀nI
B.
μ₀I/n
C.
nI/μ₀
D.
I/μ₀n
Show solution
Solution
The magnetic field (B) inside a long solenoid is given by B = μ₀nI, where n is the number of turns per unit length and I is the current.
Correct Answer:
A
— μ₀nI
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Q. The magnetic field lines around a straight current-carrying conductor are in which shape? (2022)
A.
Straight lines
B.
Concentric circles
C.
Ellipses
D.
Spirals
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Solution
The magnetic field lines around a straight current-carrying conductor form concentric circles centered around the wire.
Correct Answer:
B
— Concentric circles
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Q. The magnetic field lines around a straight current-carrying conductor are: (2022)
A.
Straight lines
B.
Concentric circles
C.
Elliptical
D.
Random
Show solution
Solution
The magnetic field lines around a straight current-carrying conductor form concentric circles centered around the wire.
Correct Answer:
B
— Concentric circles
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Q. The magnetic field lines inside a bar magnet are directed from: (2019)
A.
North to South
B.
South to North
C.
East to West
D.
West to East
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Solution
The magnetic field lines inside a bar magnet are directed from the North pole to the South pole.
Correct Answer:
A
— North to South
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Q. The maximum displacement from the mean position in simple harmonic motion is called: (2019)
A.
Amplitude
B.
Frequency
C.
Wavelength
D.
Period
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Solution
The maximum displacement is defined as the amplitude.
Correct Answer:
A
— Amplitude
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Q. The maximum speed of a simple harmonic oscillator is 4 m/s. If the amplitude is 2 m, what is the angular frequency? (2019)
A.
2 rad/s
B.
4 rad/s
C.
1 rad/s
D.
8 rad/s
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Solution
Maximum speed (v_max) = ωA => ω = v_max / A = 4 m/s / 2 m = 2 rad/s.
Correct Answer:
B
— 4 rad/s
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Q. The phenomenon of electromagnetic induction was discovered by which scientist? (2022)
A.
Michael Faraday
B.
James Clerk Maxwell
C.
Nikola Tesla
D.
Albert Einstein
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Solution
Electromagnetic induction was discovered by Michael Faraday.
Correct Answer:
A
— Michael Faraday
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Q. The potential energy stored in a capacitor is directly proportional to which of the following? (2023)
A.
Charge and Voltage
B.
Charge only
C.
Voltage only
D.
Capacitance only
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Solution
The potential energy (U) stored in a capacitor is given by U = 1/2 CV^2, which shows it is directly proportional to both charge and voltage.
Correct Answer:
A
— Charge and Voltage
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Q. The potential energy stored in a capacitor is given by which of the following formulas? (2020)
A.
1/2 CV^2
B.
CV
C.
Q^2/2C
D.
1/2 QV
Show solution
Solution
The potential energy (U) stored in a capacitor is given by U = 1/2 CV^2.
Correct Answer:
A
— 1/2 CV^2
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Q. The pressure of a gas is inversely proportional to its volume at constant temperature is known as: (2022)
A.
Charles's Law
B.
Boyle's Law
C.
Avogadro's Law
D.
Ideal Gas Law
Show solution
Solution
Boyle's Law states that the pressure of a gas is inversely proportional to its volume at constant temperature.
Correct Answer:
B
— Boyle's Law
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Q. The pressure of an ideal gas is directly proportional to its temperature when: (2022)
A.
Volume is constant
B.
Number of moles is constant
C.
Both volume and number of moles are constant
D.
None of the above
Show solution
Solution
According to Gay-Lussac's law, the pressure of an ideal gas is directly proportional to its temperature when the volume is held constant.
Correct Answer:
A
— Volume is constant
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Q. The pressure of an ideal gas is inversely proportional to its volume at constant temperature. This relationship is known as: (2022)
A.
Charles's Law
B.
Boyle's Law
C.
Avogadro's Law
D.
Ideal Gas Law
Show solution
Solution
This relationship is known as Boyle's Law, which states that the pressure of an ideal gas is inversely proportional to its volume at constant temperature.
Correct Answer:
B
— Boyle's Law
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Q. The restoring force in a simple harmonic oscillator is directly proportional to what? (2022)
A.
Displacement
B.
Velocity
C.
Acceleration
D.
Mass
Show solution
Solution
The restoring force (F) is directly proportional to the displacement (x) and acts in the opposite direction, F = -kx.
Correct Answer:
A
— Displacement
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Q. The restoring force in simple harmonic motion is directly proportional to what? (2022)
A.
Displacement
B.
Velocity
C.
Acceleration
D.
Mass
Show solution
Solution
The restoring force (F) is directly proportional to the displacement (x) and acts in the opposite direction, F = -kx.
Correct Answer:
A
— Displacement
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Q. The restoring force in simple harmonic motion is directly proportional to: (2023)
A.
Displacement
B.
Velocity
C.
Acceleration
D.
Mass
Show solution
Solution
Restoring force (F) is proportional to displacement (x), F = -kx.
Correct Answer:
A
— Displacement
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Q. The self-inductance of a coil depends on which of the following factors? (2021)
A.
Number of turns
B.
Area of cross-section
C.
Length of the coil
D.
All of the above
Show solution
Solution
The self-inductance of a coil depends on the number of turns, area of cross-section, and length of the coil.
Correct Answer:
D
— All of the above
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Q. The specific heat capacity of a substance is defined as the amount of heat required to raise the temperature of: (2023)
A.
1 kg of the substance by 1°C
B.
1 g of the substance by 1°C
C.
1 L of the substance by 1°C
D.
1 mole of the substance by 1°C
Show solution
Solution
The specific heat capacity is defined as the amount of heat required to raise the temperature of 1 kg of the substance by 1°C.
Correct Answer:
A
— 1 kg of the substance by 1°C
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Q. The specific heat capacity of a substance is defined as: (2023)
A.
The amount of heat required to raise the temperature by 1 degree Celsius
B.
The amount of heat required to change the phase of a substance
C.
The heat required to raise the temperature of 1 kg of the substance by 1 degree Celsius
D.
The heat required to raise the temperature of 1 mole of the substance by 1 degree Celsius
Show solution
Solution
The specific heat capacity is defined as the amount of heat required to raise the temperature of 1 kg of the substance by 1 degree Celsius.
Correct Answer:
C
— The heat required to raise the temperature of 1 kg of the substance by 1 degree Celsius
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Q. The uncertainty in a measurement is defined as: (2022)
A.
The difference between the maximum and minimum values
B.
The average of the measurements
C.
The standard deviation
D.
The range of values
Show solution
Solution
Uncertainty is often defined as the range of values within which the true value lies.
Correct Answer:
A
— The difference between the maximum and minimum values
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Q. The unit 'Joule' is a measure of which of the following? (2023)
A.
Force
B.
Energy
C.
Power
D.
Work
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Solution
Joule is the SI unit of energy, which is also equivalent to work done.
Correct Answer:
B
— Energy
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Q. The unit of force in the SI system is derived from which of the following? (2023)
A.
Mass and length
B.
Mass, length, and time
C.
Length and time
D.
Mass and time
Show solution
Solution
The unit of force (Newton) is derived from mass, length, and time: kg·m/s².
Correct Answer:
B
— Mass, length, and time
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Q. The unit of force in the SI system is: (2023)
A.
Joule
B.
Newton
C.
Pascal
D.
Watt
Show solution
Solution
The SI unit of force is the Newton (N).
Correct Answer:
B
— Newton
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Q. The unit of power in the SI system is defined as: (2023)
A.
Joule per second
B.
Newton per meter
C.
Watt per hour
D.
Kilogram meter per second
Show solution
Solution
The SI unit of power is defined as Joule per second (Watt).
Correct Answer:
A
— Joule per second
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Q. The unit of power in the SI system is: (2023)
A.
Joule
B.
Watt
C.
Newton
D.
Pascal
Show solution
Solution
The SI unit of power is the Watt (W).
Correct Answer:
B
— Watt
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Q. The unit of power is defined as: (2023)
A.
Joule per second
B.
Newton per meter
C.
Watt per hour
D.
Kilowatt
Show solution
Solution
Power is defined as Joule per second (Watt).
Correct Answer:
A
— Joule per second
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Q. The unit of work is defined as one joule. What is one joule equivalent to? (2023)
A.
One newton meter
B.
One kilogram meter per second
C.
One watt second
D.
One pascal meter
Show solution
Solution
One joule is defined as one newton meter (N·m).
Correct Answer:
A
— One newton meter
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Q. The viscosity of a fluid is a measure of its: (2022)
A.
Density
B.
Pressure
C.
Resistance to flow
D.
Temperature
Show solution
Solution
Viscosity measures a fluid's resistance to flow; higher viscosity means the fluid flows less easily.
Correct Answer:
C
— Resistance to flow
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Q. The work done by an ideal gas during an isothermal expansion is given by which formula? (2023)
A.
W = PΔV
B.
W = nRT ln(Vf/Vi)
C.
W = ΔU
D.
W = 0
Show solution
Solution
The work done by an ideal gas during an isothermal expansion is given by W = nRT ln(Vf/Vi), where Vf and Vi are the final and initial volumes.
Correct Answer:
B
— W = nRT ln(Vf/Vi)
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Physics (NEET) MCQ & Objective Questions
Physics is a crucial subject for students preparing for NEET and other competitive exams. Mastering Physics (NEET) through MCQs and objective questions not only enhances conceptual clarity but also boosts your confidence for the exam. Regular practice of important questions helps in identifying weak areas and improves overall performance in exams.
What You Will Practise Here
Mechanics: Laws of Motion and their applications
Thermodynamics: Key principles and formulas
Electromagnetism: Concepts of electric fields and circuits
Optics: Reflection, refraction, and lens formulas
Waves: Sound waves and their properties
Modern Physics: Basics of quantum mechanics and atomic structure
Units and Measurements: Significant figures and dimensional analysis
Exam Relevance
Physics is a significant part of the syllabus for CBSE, State Boards, NEET, and JEE. In these exams, you can expect a variety of question patterns, including conceptual MCQs, numerical problems, and application-based questions. Understanding the core concepts and practicing Physics (NEET) MCQ questions will help you tackle these questions effectively and efficiently.
Common Mistakes Students Make
Misinterpreting the question stem, leading to incorrect answers.
Neglecting units and dimensions in numerical problems.
Overlooking the significance of diagrams in understanding concepts.
Confusing similar concepts, such as velocity and acceleration.
FAQs
Question: How can I improve my Physics (NEET) scores?Answer: Regular practice of MCQs and understanding the underlying concepts will significantly enhance your scores.
Question: Are there specific topics I should focus on for NEET Physics?Answer: Focus on Mechanics, Thermodynamics, and Electromagnetism, as these areas frequently appear in exams.
Start solving practice MCQs today to test your understanding and solidify your knowledge in Physics. Remember, consistent practice is the key to success in your exam preparation!
