Physics Syllabus (JEE Main)
Q. Which of the following is a non-Newtonian fluid?
A.
Water
B.
Glycerin
C.
Cornstarch in water
D.
Mercury
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Solution
Cornstarch in water exhibits non-Newtonian behavior, as its viscosity changes with the applied shear stress.
Correct Answer: C — Cornstarch in water
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Q. Which of the following is a practical application of diffraction?
A.
Optical instruments
B.
Radio transmission
C.
Medical imaging
D.
All of the above
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Solution
Diffraction is utilized in various applications including optical instruments, radio transmission, and medical imaging.
Correct Answer: D — All of the above
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Q. Which of the following is a practical application of total internal reflection?
A.
Lenses in glasses.
B.
Mirrors in telescopes.
C.
Fiber optic communication.
D.
Convex lenses.
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Solution
Fiber optic communication relies on total internal reflection to transmit light signals over long distances with minimal loss.
Correct Answer: C — Fiber optic communication.
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Q. Which of the following is a property of a Newtonian fluid?
A.
Viscosity changes with shear rate
B.
Constant viscosity regardless of shear rate
C.
Non-linear flow behavior
D.
High compressibility
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Solution
A Newtonian fluid has a constant viscosity regardless of the shear rate.
Correct Answer: B — Constant viscosity regardless of shear rate
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Q. Which of the following is a property of fluids?
A.
Incompressibility
B.
Elasticity
C.
Brittleness
D.
Ductility
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Solution
Fluids are often considered incompressible for practical purposes, especially in hydrodynamics.
Correct Answer: A — Incompressibility
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Q. Which of the following is a scalar quantity?
A.
Velocity
B.
Force
C.
Acceleration
D.
Temperature
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Solution
Temperature is a scalar quantity as it has magnitude but no direction.
Correct Answer: D — Temperature
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Q. Which of the following is a unit of energy?
A.
Joule
B.
Newton
C.
Watt
D.
Pascal
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Solution
Joule is the unit of energy in the SI system, defined as the work done when a force of one newton displaces an object by one meter.
Correct Answer: A — Joule
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Q. Which of the following is a universal gate?
A.
AND
B.
OR
C.
NAND
D.
XOR
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Solution
The NAND gate is a universal gate because it can be used to create any other gate.
Correct Answer: C — NAND
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Q. Which of the following is an example of a non-conservative force?
A.
Gravitational force
B.
Electrostatic force
C.
Frictional force
D.
Magnetic force
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Solution
Frictional force is an example of a non-conservative force as it dissipates energy as heat.
Correct Answer: C — Frictional force
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Q. Which of the following is an example of a non-contact force?
A.
Friction
B.
Tension
C.
Magnetic force
D.
Normal force
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Solution
Magnetic force is an example of a non-contact force, as it acts at a distance.
Correct Answer: C — Magnetic force
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Q. Which of the following is an example of a non-Newtonian fluid?
A.
Water
B.
Air
C.
Cornstarch in water
D.
Glycerin
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Solution
Cornstarch in water (oobleck) is a non-Newtonian fluid that exhibits varying viscosity depending on the shear rate.
Correct Answer: C — Cornstarch in water
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Q. Which of the following is an example of an adiabatic process?
A.
Heating water in a kettle
B.
Compressing a gas in a piston without heat exchange
C.
Cooling a gas in a refrigerator
D.
Heating a metal rod in a flame
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Solution
An adiabatic process is one in which no heat is exchanged with the surroundings. Compressing a gas in a piston without heat exchange is an example.
Correct Answer: B — Compressing a gas in a piston without heat exchange
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Q. Which of the following is an example of conduction?
A.
Boiling water
B.
Heating a metal rod
C.
Sun warming the Earth
D.
Wind blowing
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Solution
Heating a metal rod is an example of conduction, where heat is transferred through direct contact between particles.
Correct Answer: B — Heating a metal rod
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Q. Which of the following is an example of convection?
A.
Heating a metal rod in a flame
B.
Boiling water in a pot
C.
Sunlight warming the ground
D.
Ice melting in a drink
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Solution
Boiling water in a pot is a classic example of convection, where hot water rises and cooler water descends.
Correct Answer: B — Boiling water in a pot
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Q. Which of the following is an example of forced convection?
A.
Heat transfer in a pot of boiling water
B.
Heat transfer from a radiator
C.
Heat transfer from a hot cup of coffee
D.
Heat transfer in a still air room
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Solution
Heat transfer in a pot of boiling water is an example of forced convection.
Correct Answer: B — Heat transfer from a radiator
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Q. Which of the following is an example of heat transfer by radiation?
A.
Heating a metal rod in a flame
B.
Sunlight warming the Earth
C.
Boiling water in a pot
D.
Heating air in a room
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Solution
Sunlight warming the Earth is an example of heat transfer by radiation, as it does not require a medium.
Correct Answer: B — Sunlight warming the Earth
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Q. Which of the following is NOT a base unit in the SI system?
A.
Meter
B.
Kilogram
C.
Second
D.
Liter
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Solution
Liter is not a base unit; it is a derived unit for volume, while meter, kilogram, and second are base units.
Correct Answer: D — Liter
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Q. Which of the following is NOT a characteristic of a satellite in a stable orbit?
A.
It experiences no net force.
B.
It moves with constant speed.
C.
It has a constant distance from the Earth.
D.
It is in free fall.
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Solution
A satellite in a stable orbit does experience a net force (gravitational force), but it is in free fall, moving with constant speed along a curved path.
Correct Answer: A — It experiences no net force.
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Q. Which of the following is NOT a characteristic of waves?
A.
Reflection
B.
Refraction
C.
Diffraction
D.
Conduction
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Solution
Conduction is a mode of heat transfer, not a characteristic of wave motion. The other options are properties of waves.
Correct Answer: D — Conduction
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Q. Which of the following is NOT a component of a Wheatstone bridge?
A.
Galvanometer
B.
Battery
C.
Inductor
D.
Resistors
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Solution
An inductor is not a component of a Wheatstone bridge; it consists of resistors, a galvanometer, and a battery.
Correct Answer: C — Inductor
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Q. Which of the following is NOT a condition for a Wheatstone bridge to be balanced?
A.
The ratio of resistances must be equal
B.
No current flows through the galvanometer
C.
The resistances must be equal
D.
The potential difference across the galvanometer is zero
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Solution
While the other conditions are necessary for balance, the resistances do not need to be equal, just in the same ratio.
Correct Answer: C — The resistances must be equal
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Q. Which of the following is not a fundamental force of nature?
A.
Gravitational force
B.
Electromagnetic force
C.
Nuclear force
D.
Frictional force
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Solution
Frictional force is not a fundamental force of nature; it is a macroscopic force resulting from the interaction of surfaces.
Correct Answer: D — Frictional force
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Q. Which of the following is NOT a fundamental quantity?
A.
Length
B.
Mass
C.
Time
D.
Force
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Solution
Force is not a fundamental quantity; it is a derived quantity based on mass, length, and time.
Correct Answer: D — Force
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Q. Which of the following is not a fundamental unit?
A.
Meter
B.
Kilogram
C.
Second
D.
Joule
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Solution
Joule is not a fundamental unit; it is a derived unit.
Correct Answer: D — Joule
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Q. Which of the following is NOT a gas law?
A.
Boyle's Law
B.
Charles's Law
C.
Avogadro's Law
D.
Newton's Law
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Solution
Newton's Law is not a gas law; it pertains to motion and forces.
Correct Answer: D — Newton's Law
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Q. Which of the following is NOT a method of producing polarized light?
A.
Reflection
B.
Refraction
C.
Scattering
D.
Diffraction
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Solution
Diffraction does not produce polarized light; it is a phenomenon related to the bending of waves around obstacles.
Correct Answer: D — Diffraction
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Q. Which of the following is NOT a practical application of a Wheatstone bridge?
A.
Measuring small resistances
B.
Calibration of measuring instruments
C.
Determining the specific resistance of a material
D.
Generating high voltages
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Solution
A Wheatstone bridge is not used for generating high voltages; it is used for measuring resistances.
Correct Answer: D — Generating high voltages
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Q. Which of the following is NOT a practical application of the Wheatstone bridge?
A.
Measuring unknown resistances
B.
Calibration of measuring instruments
C.
Determining the specific heat of a substance
D.
Testing electrical components
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Solution
Determining the specific heat of a substance is not a practical application of the Wheatstone bridge.
Correct Answer: C — Determining the specific heat of a substance
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Q. Which of the following is NOT a type of digital modulation?
A.
Amplitude Shift Keying (ASK)
B.
Frequency Shift Keying (FSK)
C.
Phase Shift Keying (PSK)
D.
Continuous Wave Modulation (CWM)
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Solution
Continuous Wave Modulation (CWM) is not a type of digital modulation; it refers to analog modulation techniques.
Correct Answer: D — Continuous Wave Modulation (CWM)
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Q. Which of the following is NOT a type of elastic deformation?
A.
Tensile deformation
B.
Compressive deformation
C.
Shear deformation
D.
Plastic deformation
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Solution
Plastic deformation is not elastic; it is permanent deformation that occurs beyond the elastic limit.
Correct Answer: D — Plastic deformation
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