Q. What is the prefix for 10^6? (2022)
A.
Kilo
B.
Mega
C.
Giga
D.
Tera
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Solution
The prefix for 10^6 is Mega (M).
Correct Answer:
B
— Mega
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Q. What is the primary application of nuclear fusion? (2023)
A.
Nuclear power plants
B.
Hydrogen bombs
C.
Medical imaging
D.
Smoke detectors
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Solution
Nuclear fusion is primarily applied in hydrogen bombs, where fusion reactions release immense energy.
Correct Answer:
B
— Hydrogen bombs
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Q. What is the primary factor that determines the inductance of a coil? (2020)
A.
Length of the wire
B.
Number of turns
C.
Material of the core
D.
All of the above
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Solution
The inductance of a coil is determined by the length of the wire, the number of turns, and the material of the core.
Correct Answer:
D
— All of the above
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Q. What is the primary function of a diode? (2022)
A.
To amplify current
B.
To rectify current
C.
To store charge
D.
To generate voltage
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Solution
A diode primarily functions to rectify current, allowing it to flow in one direction only.
Correct Answer:
B
— To rectify current
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Q. What is the primary product of nuclear fission? (2019)
A.
Energy
B.
Neutrons
C.
Protons
D.
Alpha particles
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Solution
The primary product of nuclear fission is energy, along with neutrons and smaller nuclei.
Correct Answer:
A
— Energy
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Q. What is the primary product of the fission of Uranium-235? (2019)
A.
Helium
B.
Neutrons
C.
Barium and Krypton
D.
Carbon
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Solution
The fission of Uranium-235 primarily produces Barium and Krypton along with additional neutrons.
Correct Answer:
C
— Barium and Krypton
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Q. What is the primary product of the fusion of hydrogen nuclei in stars? (2022)
A.
Helium
B.
Carbon
C.
Oxygen
D.
Nitrogen
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Solution
The primary product of hydrogen fusion in stars is helium, which occurs through the proton-proton chain reaction.
Correct Answer:
A
— Helium
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Q. What is the primary product of the fusion of hydrogen nuclei? (2022)
A.
Helium
B.
Carbon
C.
Oxygen
D.
Deuterium
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Solution
The primary product of the fusion of hydrogen nuclei (protons) is helium, along with the release of energy.
Correct Answer:
A
— Helium
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Q. What is the primary reason for the brittleness of certain materials? (2023)
A.
High ductility
B.
Low atomic bonding energy
C.
High atomic bonding energy
D.
High elasticity
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Solution
Brittleness is primarily due to high atomic bonding energy, which prevents the material from deforming plastically.
Correct Answer:
C
— High atomic bonding energy
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Q. What is the primary reason for the phenomenon of plastic deformation in materials? (2023)
A.
Elastic limit
B.
Yield strength
C.
Ultimate tensile strength
D.
Ductility
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Solution
Plastic deformation occurs when the material is subjected to stress beyond its yield strength.
Correct Answer:
B
— Yield strength
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Q. What is the primary reason for the stability of a nucleus? (2022)
A.
Number of protons
B.
Number of neutrons
C.
Ratio of neutrons to protons
D.
Size of the nucleus
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Solution
The stability of a nucleus is primarily determined by the ratio of neutrons to protons, which affects the balance of forces within the nucleus.
Correct Answer:
C
— Ratio of neutrons to protons
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Q. What is the primary reason for the use of soft iron in electromagnets? (2023)
A.
High electrical conductivity
B.
Low cost
C.
High magnetic permeability
D.
Low density
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Solution
Soft iron is used in electromagnets because it has high magnetic permeability, allowing it to be easily magnetized and demagnetized.
Correct Answer:
C
— High magnetic permeability
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Q. What is the primary source of energy for the Earth? (2022)
A.
Geothermal energy
B.
Solar energy
C.
Nuclear energy
D.
Wind energy
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Solution
The primary source of energy for the Earth is solar energy, which drives weather, climate, and photosynthesis.
Correct Answer:
B
— Solar energy
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Q. What is the principal quantum number for an electron in the third energy level? (2019)
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Solution
The principal quantum number (n) indicates the energy level; for the third energy level, n = 3.
Correct Answer:
C
— 3
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Q. What is the principle behind a manometer? (2023)
A.
It measures temperature.
B.
It measures pressure difference.
C.
It measures fluid density.
D.
It measures flow rate.
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Solution
A manometer is used to measure the pressure difference between two points in a fluid.
Correct Answer:
B
— It measures pressure difference.
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Q. What is the principle behind a photodiode? (2022)
A.
Thermal emission
B.
Photoelectric effect
C.
P-N junction
D.
Capacitance
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Solution
A photodiode operates on the principle of the photoelectric effect, where light generates electron-hole pairs.
Correct Answer:
B
— Photoelectric effect
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Q. What is the principle behind a thermos flask? (2022)
A.
Conduction
B.
Convection
C.
Radiation
D.
Insulation
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Solution
The principle behind a thermos flask is insulation, which minimizes heat transfer.
Correct Answer:
D
— Insulation
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Q. What is the principle behind the operation of a hydraulic lift? (2019)
A.
Bernoulli's principle
B.
Archimedes' principle
C.
Pascal's law
D.
Newton's law
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Solution
A hydraulic lift operates based on Pascal's law, which states that pressure applied to a confined fluid is transmitted undiminished in all directions.
Correct Answer:
C
— Pascal's law
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Q. What is the principle behind the working of a galvanometer? (2023)
A.
Electromagnetic induction
B.
Magnetic force on a current-carrying conductor
C.
Electrostatic force
D.
Magnetic field lines
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Solution
A galvanometer works on the principle of the magnetic force acting on a current-carrying conductor placed in a magnetic field.
Correct Answer:
B
— Magnetic force on a current-carrying conductor
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Q. What is the principle that states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure?
A.
Bernoulli's Principle
B.
Archimedes' Principle
C.
Pascal's Law
D.
Newton's Law
Show solution
Solution
Bernoulli's Principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure.
Correct Answer:
A
— Bernoulli's Principle
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Q. What is the principle that states that the buoyant force on an object is equal to the weight of the fluid displaced by the object?
A.
Archimedes' Principle
B.
Pascal's Law
C.
Bernoulli's Principle
D.
Newton's Law
Show solution
Solution
Archimedes' Principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.
Correct Answer:
A
— Archimedes' Principle
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Q. What is the principle that states that the pressure in a fluid decreases as the fluid's velocity increases?
A.
Bernoulli's Principle
B.
Pascal's Principle
C.
Archimedes' Principle
D.
Hydrostatic Principle
Show solution
Solution
Bernoulli's Principle states that an increase in the velocity of a fluid occurs simultaneously with a decrease in pressure.
Correct Answer:
A
— Bernoulli's Principle
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Q. What is the process called when a nucleus emits an alpha particle? (2019)
A.
Beta decay
B.
Gamma decay
C.
Alpha decay
D.
Fission
Show solution
Solution
The emission of an alpha particle from a nucleus is known as alpha decay.
Correct Answer:
C
— Alpha decay
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Q. What is the process called when heat is transferred through a fluid? (2019)
A.
Conduction
B.
Convection
C.
Radiation
D.
Insulation
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Solution
Convection is the process of heat transfer through a fluid (liquid or gas) due to the movement of the fluid itself.
Correct Answer:
B
— Convection
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Q. What is the process of converting a neutron into a proton called? (2020)
A.
Beta decay
B.
Alpha decay
C.
Gamma decay
D.
Fission
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Solution
Beta decay is the process in which a neutron is converted into a proton, emitting an electron and an antineutrino.
Correct Answer:
A
— Beta decay
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Q. What is the process of heat transfer through a fluid due to density differences called? (2023)
A.
Conduction
B.
Convection
C.
Radiation
D.
Insulation
Show solution
Solution
The process of heat transfer through a fluid due to density differences is called convection.
Correct Answer:
B
— Convection
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Q. What is the process of heat transfer through direct contact called? (2022)
A.
Convection
B.
Conduction
C.
Radiation
D.
Insulation
Show solution
Solution
The process of heat transfer through direct contact is called conduction.
Correct Answer:
B
— Conduction
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Q. What is the process of heat transfer through fluid motion called? (2022)
A.
Conduction
B.
Convection
C.
Radiation
D.
Insulation
Show solution
Solution
The process of heat transfer through fluid motion is called convection.
Correct Answer:
B
— Convection
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Q. What is the process of heat transfer through the movement of fluids called? (2022)
A.
Conduction
B.
Convection
C.
Radiation
D.
Insulation
Show solution
Solution
The process of heat transfer through the movement of fluids is called convection.
Correct Answer:
B
— Convection
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Q. What is the purpose of using a vernier caliper? (2019)
A.
To measure mass
B.
To measure temperature
C.
To measure length with high precision
D.
To measure volume
Show solution
Solution
A vernier caliper is used to measure lengths with high precision.
Correct Answer:
C
— To measure length with high precision
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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!