Category: NEET Physics Objective Questions

NEET  Physics is the very imporatant paper in the Medical Entrance EXAM. So these NEET Physics MCQs with Answers for all Concepts as per the new syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution . NEET Physics Uniform Circular Motion Multiple Choice Questions

MCQs on Uniform Circular Motion :

1. The angular velocity of a body moving with a constant speed v in a circle of radius r is given by 
(A) v²/r
(B) vr
(C) v/r
(D) r/v

Answer

Answer: (C) v/r

2. A cyclist turns around a curve at 15 miles/hour. If he turns at double the speed, the tendency to overturn is
(A) Doubled
(B) Quadrupled
(C) Halved
(D) Unchanged

Answer

Answer: (B) Quadrupled

3. What will be the velocity vector of a particle moving in a circle describing equal angles in equal times
(A) Changes in direction
(B) Remains constant
(C) Changes in magnitude
(D) Changes both in direction and magnitude

Answer

Answer: (A) Changes in direction

4. A body moves with a constant speed in a circular path is moving in a circular path with a constant speed. It has
(A) Acceleration of constant magnitude
(B) Constant velocity
(C) Constant acceleration
(D) An acceleration which varies with time

Answer

Answer: (A) Acceleration of constant magnitude

5. A motorcyclist going with a constant speed in a circular track has 
(A) Linear velocity is constant
(B) Constant acceleration
(C) Angular velocity is constant
(D) Constant force

Answer

Answer: (C) Angular velocity is constant

6. What could be the reason a car moving on a horizontal road gets thrown out of the road while taking a turn
(A) Due to the reaction of the ground
(B) Due to rolling frictional force between tyre and road
(C) By the gravitational force
(D) Due to lack of sufficient centripetal force

Answer

Answer: (D) Due to lack of sufficient centripetal force

7. If a particle moves with constant angular velocity in a circle then during the motion its
(A) Momentum is conserved
(B) Energy is conserved
(C) Both energy and momentum is conserved
(D) None of the above is conserved

Answer

Answer: (B) Energy is conserved

8. A stone tied to a string is rotated in a circle. If the string is cut, the stone flies away from the circle because
(A) A centrifugal force acts on the stone
(B) Of its inertia
(C) A centripetal force acts on the stone
(D) The reaction of the centripetal force

Answer

Answer: (B) Of its inertia

9. A body moves with a constant speed along a circle. Then,
(A) No work is done on it
(B) There is no acceleration produced in the body
(C) No force acts on the body
(D) The body has constant velocity

Answer

Answer: (A) No work is done on it

10. A tachometer is a device to measure
(A) Gravitational pull
(B) Speed of rotation
(C) Surface tension
(D) Tension in a spring

Answer

Answer: (B) Speed of rotation

NEET  Physics is the very imporatant paper in the Medical Entrance EXAM. So these NEET Physics MCQs and Answers for all Concepts as per the new syllabus. Practice daily with these NEET Physics objective questions on air pollution . NEET Physics Conductors and insulators Multiple Choice Questions make you feel confident in answering the question in the

MCQs on Conductors and insulators :

1. Which of the following is the most conductive element?
(A) Copper
(B) Iron
(C) Silicon
(D) Silver

Answer

Answer: (D) Silver

2. A material that has zero resistance is called
(A) Insulator
(B) Conductor
(C) Superconductor
(D) semiconductor

Answer

Answer: (C) Superconductors

3. Why is copper a preferred choice in making electrical wires?
(A) Copper is a good conductor of electricity
(B) Poor conductors of electricity
(C) Insulators
(D) Superconductors

Answer

Answer: (A) Copper is a good conductor of electricity

4. Which among the following is not an insulator?
(A) Wool
(B) Plastic
(C) Silver
(D) Paper

Answer

Answer: (C) Silver

5. What is the inverse of resistance called?
(A) Inductance
(B) Conductance
(C) Resistivity
(D) permittivity

Answer

Answer: (B) Conductance

6. The energy gap is maximum in
(A) Conductors
(B) Semiconductors
(C) Insulators
(D) Superconductors

Answer

Answer: (C) Insulators

7. Conductors are materials that allow
(A) Allow the flow of heat
(B) Does not allow heat to flow
(C) Allows cold to flow
(D) Stops cold from passing through

Answer

Answer: (A) Allow the flow of heat

8. Good conductors have many loosely bound
(A) Atoms
(B) Protons
(C) Molecules
(D) Electrons

Answer

Answer: (D) Electrons

9. The resistance of the conductor is directly proportional to
(A) Length
(B) Area of cross-section
(C) Temperature
(D) resistivity

Answer

Answer: (A) Length

10. With the increase in temperature the resistance of semiconductors
(A) Decreases
(B) Increases
(C) Remains constant
(D) Initially increases and then decreases

Answer

Answer: (A) Decreases

NEET  Physics is the very imporatant paper in the Medical Entrance EXAM. So these NEET Physics MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Physics objective questions on air pollution . NEET Physics Magnetism Multiple Choice Questions

MCQs on Magnetism :

1. For which of the following is magnetic susceptibility negative?
(A) Paramagnetic and Ferromagnetic materials
(B) Paramagnetic Materials only
(C) Ferromagnetic Materials only
(D) Diamagnetic Materials

Answer

Answer: (D) Diamagnetic Materials

2. The Hysteresis loops for two magnetic materials A and B are given below:

These materials are used to make magnets for transformer core, electric generators and electromagnet core. Which of the following is true about the given magnets?
(A) A for transformers and B for electric generators
(B) A for electric generators and transformers
(C) B for electromagnets and generators
(D) A for electromagnets and B for electric generators

Answer

Answer: (C) B for electromagnets and generators

3. Which of the following is the unit of magnetic flux density?
(A) Weber/meter²
(B) Tesla
(C) Newton/ampere-metre
(D) All of the above

Answer

Answer:

4. The magnetism of a magnet is due to
(A) earth
(B) cosmic rays
(C) due to pressure of big magnet inside the earth
(D) spin motion of electrons

Answer

Answer: (D) spin motion of electrons

5. The magnetic field at a point x on the axis of a mall bar magnet is equal to the field at a point y on the equator of the same magnet. The ratio of the distances of x and y from the centre of the magnet is
(A) 2^-1/3
(B) 2^1/3
(C) 2³
(D) 2^-3

Answer

Answer: (B) 2^1/3

6. Which of the following materials is the most suitable for making a permanent magnet?
(A) Soft Iron
(B) Nickel
(C) Copper
(D) Steel

Answer

Answer: (D) Steel

7. A sensitive magnetic field instrument can be effectively shielded from the external magnetic field by placing it inside which of the following materials?
(A) Plastic Material
(B) Teak Wood
(C) Soft Iron of high permeability
(D) A metal of high conductivity

Answer

Answer: (C) Soft Iron of high permeability

8. A long magnet is cut into two parts such that the ratio of their lengths is 2:1. What is the ratio pole strength of both the section?
(A) 1:2
(B) 2:1
(C) 4:1
(D) Equal

Answer

Answer: (D) Equal

9. Which of the following statements is true about magnetic field intensity?
(A) Magnetic field intensity is the number of lines of force crossing per unit volume.
(B) Magnetic field intensity is the number of lines of force crossing per unit area.
(C) Magnetic field intensity is the magnetic induction force acting on a unit magnetic pole.
(D) Magnetic field intensity is the magnetic moment per unit volume.

Answer

Answer: (C) Magnetic field intensity is the magnetic induction force acting on a unit magnetic pole

10. What happens to the magnetic needle kept in a non-uniform magnetic field?
(A) It experiences force but not torque
(B) It experiences torque but not force
(C) It experiences both force and torque
(D) It neither experiences force nor torque

Answer

Answer: (A) It experiences force but not torque

11. What is the torque acting on the bar magnet of moment M which is placed in a uniform field H making an angle of 30⁰ with the field?
(A) MH
(B) MH/2
(C) MH/3
(D) MH/4

Answer

Answer: (B) MH/2

12. What happens to the magnetic moment if a hole is made at the centre of a bar magnet?
(A) Decreases
(B) Increases
(C) Not a change
(D) None of the above

Answer

Answer: (C) Not a change

13. Which of the following statements is true about magnetic lines of force?
(A) Magnetic lines of force are always closed.
(B) Magnetic lines of force always intersect each other.
(C) Magnetic lines of force tend to crowd far away from the poles of the magnet
(D) Magnetic lines of force do not pass through the vacuum.

Answer

Answer: (A) Magnetic lines of force are always closed.

14. What is the work done by the magnet of moment M if it is rotated through 360⁰ in magnetic field H?
(A) 2MH
(B) MH
(C) 2πMH
(D) Zero

Answer

Answer: (D) Zero

15. Magnetic lines of force of a bar magnet do not intersect because
(A) The lines have similar charges hence they repel each other
(B) The lines always diverge from a single point
(C) A point always has a single net magnetic field
(D) The lines need magnetic lenses to intersect

Answer

Answer: (C) A point always has a single net magnetic field

NEET  Physics is the very imporatant paper in the Medical Entrance EXAM. So these NEET Physics MCQs and Answers for all Concepts as per the new syllabus. Practice daily with these NEET Physics objective questions on air pollution . NEET Physics Electro statistics Multiple Choice Questions make you feel confident in answering the question in the

MCQs on Electro statistics :

1. What will be the flux coming out of any surface a cube, if a change QμC is placed at the centre of the cube?

Answer

Answer: (D) (frac{Q}{6 c_{0}} times 10^{-6})

2. Name the law that states the force between electric charges
(A) Ohm’s law
(B) Coulomb’s law
(C) Faraday’s law
(D) Ampere’s law

Answer

Answer: (B) Coulomb’s law

3. What happens to the force acting between the charged particles, if the distance between these charged particles is halved?
(A) It increases by four times
(B) It gets doubled
(C) It becomes half
(D) It reduces by one-fourth

Answer

Answer: (A) It increases by four times

4. What is the electric potential of the points A, B, and C which are in a uniform electric field?

(A) The electric field is the same at all three points A, B, and C
(B) Maximum at A
(C) Maximum at B
(D) Maximum at C

Answer

Answer: (C) Maximum at B

5. What is the minimum charge on a particle?
(A) 1 Coulomb
(B) 1.6 x 10^-19 Coulomb
(C) 3.2 x 10^-19 Coulomb
(D) 6.6 x 10^-19 Coulomb

Answer

Answer: (B) 1.6 x 10^-19 Coulomb

6. For a hollow spherical shell, potential, V changes with respect to distance, r from the centre. Which graph from the following represents this?

Answer

Answer: (B)

7. What is the graphical representation of an electric field due to the uniformly charged sphere of radius R which is a function of distance from the centre?

Answer

Answer: (A)

8. The capacity of parallel plate condenser is dependent on the
(A) The separation between the plates
(B) The metal used for the construction
(C) The thickness of the plate
(D) The potential applied across the plates

Answer

Answer: (A) The separation between the plates

9. The mathematical representation of the force of attraction between the plates of the parallel plate capacitor is given as

Answer

Answer: (C) (frac{q^{2}}{2 epsilon_{0} A K})

10. What does an electric dipole experience when it is kept in the non-uniform electric field?
(A) Only a force
(B) Only torque
(C) Force and torque both
(D) Neither force nor torque

Answer

Answer: (C) Force and torque both

11. The capacitance of the capacitor is independent of
(A) The charges present on the plate
(B) The distance of separation between the plates
(C) The shape of the plates
(D) The size of the plates

Answer

Answer: (D) The size of the plates

12. Consider two capacitances of capacity C₁ and C₂ which are connected in series and have potential difference V. What is the potential difference across C₁?

Answer

Answer: (D) (Vleft(frac{C_{2}}{C_{1}+C_{2}}right))

NEET  Physics is the very imporatant paper in the Medical Entrance EXAM. So these NEET Physics MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Physics objective questions on air pollution . NEET Physics RLC Circuit Multiple Choice Questions make you feel confident in answering the question in the

MCQs on RLC Circuit :

1. A 6.8 kΩ resistor, a 7 mH coil, and a 0.02 μF capacitor are in parallel across a 17 kHz ac source. The coil’s internal resistance Rw is 30 Ω. The equivalent parallel resistance, Rp (eq) is
(A) 1,878 Ω
(B) 18,780 Ω
(C) 18,750 Ω
(D) 626 Ω

Answer

Answer: (B) 18,780 Ω

2. A 15 kΩ resistor, a 220 μH coil, and a 60 pF capacitor are in series across an ac source. What is the bandwidth of the circuit?
(A) 138 MHz
(B) 10,866 Hz
(C) 1,907 Hz
(D) 138 kHz

Answer

Answer: (B) 10,866 Hz

3. A 90 Ω resistor, a coil with 30 Ω of reactance, and a capacitor with 50 Ω of reactance are in series across a 12 V ac source. The current through the resistor is
(A) 9 mA
(B) 90 mA
(C) 13 mA
(D) 130 mA

Answer

Answer: (D) 130 mA

4. The total impedance, expressed in polar form for a certain series RLC circuit with a 200 Hz, 15 V ac source has the following values: R = 12 Ω, C = 80 μF, and L= 10 mH is
(A) 12.28 ㄥ12.34⁰ Ω
(B) 12.57 ㄥ12.34⁰ Ω
(C) 9.95 ㄥ12.34⁰ Ω
(D) 12.62 ㄥ12.34⁰ Ω

Answer

Answer: (A) 12.28 ㄥ12.34⁰ Ω

5. If the resistance in parallel with a parallel resonant circuit is reduced, the bandwidth
(A) Disappears
(B) Becomes Sharper
(C) Increases
(D) Decreases

Answer

Answer: (D) Decreases

6. To tune a parallel resonant circuit to a higher frequency, the capacitance should be
(A) Increased
(B) Decreased
(C) Left alone
(D) Replaced with inductance

Answer

Answer: (B) Decreased

7. A 15 Ω resistor, an inductor with 8 Ω inductive reactance, and a capacitor with 12 Ω capacitive reactance are in parallel across an ac voltage source.
(A) 12.7 Ω
(B) 127 Ω
(C) 4.436 Ω
(D) 6,174 Ω

Answer

Answer: (A) 12.7 Ω

8. What is the value of resonant frequency if the value of C in a series RLC circuit is decreased?
(A) Is not affected
(B) Increases
(C) Is reduced to zero
(D) Decreases

Answer

Answer: (B) Increases

9. In a series RLC circuit that is operating above the resonant frequency the current
(A) Lags the applied voltage
(B) Leads the applied voltage
(C) Is in phase with the applied voltage
(D) Is zero

Answer

Answer: (A) Lags the applied voltage

10. An inductor with a reactance of 120 Ω, a capacitor with a reactance of 120 Ω and a 24 Ω resistor are in series across a 60 V source. The circuit is at resonance. The voltage across the inductor is
(A) 60 V
(B) 660 V
(C) 30 V
(D) 300 V

Answer

Answer: (D) 300 V

NEET  Physics is the very imporatant paper in the Medical Entrance EXAM. So these NEET Physics MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Physics objective questions on air pollution . NEET Physics Conservation of Energy and Momentum Multiple Choice Questions

MCQs on Conservation of Energy and Momentum :

1. Work done in raising a box depends on
(A) How fast it is raised
(B) The strength of the man
(C) The height by which it is raised
(D) None of the above

Answer

Answer: (C) The height by which it is raised

2. A light and a heavy body have equal momenta. Which one has greater kinetic energy?
(A) The light body
(B) The heavy body
(C) The kinetic energy is equal
(D) Data is incomplete

Answer

Answer: (A) The light body

3. A body at rest may have
(A) Energy
(B) Momentum
(C) Speed
(D) Velocity

Answer

Answer: (A) Energy

4. If the momentum of a body is increased n times, its kinetic energy increase
(A) n times
(B) 2n times
(C) n³ times
(D) n² times

Answer

Answer: (D) n² times

5. When work is done on a body by an external force, its
(A) kinetic energy increases
(B) potential energy increases
(C) Both kinetic energy and potential energy increases
(D) Sum of the kinetic energy and potential energy remains constant

Answer

Answer: (C) Both kinetic energy and potential energy increases

6. If the K.E of a body is increased by 300% its momentum will increase by
(A) 100%
(B) 150%
(C) 200%
(D) 175%

Answer

Answer: (A) 100 %

7. A light and a heavy body have equal kinetic energy. Which one has a greater momentum?
(A) The light body
(B) The heavy body
(C) Both have equal momentum
(D) It is not possible to say anything without additional information

Answer

Answer: (B) The heavy body

8. If the linear momentum is increased by 50% the kinetic energy will increase by
(A) 50%
(B) 100%
(C) 125%
(D) 25%

Answer

Answer: (C) 125%

9. If the stone is thrown up vertically and return to the ground, its potential energy is maximum
(A) During the upward journey
(B) At the maximum height
(C) During the return journey
(D) At the bottom

Answer

Answer: (B) At the maximum height

10. The energy stored in wound watch spring is
(A) K.E
(B) P.E
(C) Heat Energy
(D) Chemical Energy

Answer

Answer: (B) P.E