Physics NEET MCQs 2023

Students appearing for NEET are primarily aspiring to become medical professionals. Thus, their primary focus is on biology, and as a result, they tend to struggle in solving other subjects like physics and chemistry. However, students should keep in mind that if they want to score high and secure a better rank, chemistry and physics MCQs should not be neglected.

With the NEET 2023 around the corner, as a student, you must be gearing up for your final revisions. Therefore, having a set of selected physics objective questions and its answer key at hand can prove to be immensely helpful. In this article, you can find such selected physics questions as per chapters.

Physics MCQs on Optics

1. If the critical angle for a TIR from medium to vacuum is 30°, then calculate the velocity of a light ray in the medium –

1. 3 x 108 m/s

2. 1.5 x 108 m/s 

3. 0.75 x 108 m/s

4. 2 x 108 m/s

2. If the focal length of an objective lens is increased, then state the change in magnifying power of that particular objective lens –

1. The microscope and telescope power will decrease.

2. The microscope power will increase, but for the telescope, it decreases.

3. The microscope power will decrease, but for the telescope, it will increase 

4. The microscope and telescope power will increase.

3. What is the magnification produced by plane mirrors?

1. +1 

2. Zero

3. -1

4. None of these

4. What is hypermetropia?

1. Short-sightedness

2. When a layer forms on the eye

3. Chronic eye infection

4. Long-sightedness 

5. What is the phenomenon responsible for rainbows?

1. Dispersion and reflection.

2. Dispersion and complete internal reflection 

3. Refraction and scattering.

4. Refraction and complete internal reflection.

6. The magnifying power of the given astronomical telescope when placed in normal adjustment is 100. What will be the focal length of the objectives and eyepiece when the distance between both is 101 cm?

1. 1 cm and 10 cm respectively.

2. 100 cm and 1 cm respectively

3. 1 cm and 100 cm respectively

4. 10 cm and 1 cm respectively. 

7. Air bubble in a glass slab that has a refractive index of 1.5 is 5 cm deep when it is viewed from one surface, while it is 3 cm deep when it is viewed from the opposite face. What is the thickness of the slab in cm

1. 10

2. 12

3. 8

4. 16

8.   An astronomical telescope is said to have large angular magnification along with higher angular resolution only if it has the objective lens of

1. Large focal length and large diameter

2. Small focal length and large diameter 

3. Small focal length and small diameter

4. Large focal length and small diameter 

9. A biconcave lens of glass that has a refractive index of 1.47 when dipped in water, acts as a plain sheet of glass. To attain this, the liquid is supposed to have a refractive index

1. Less than one

2. Greater than that of glass

3. Less than that of glass

4. Equal to that of glass

10. A lens having large focal length and large aperture is known to be best suited as an objective for the astronomical telescope. This is because;

1. Large aperture provides better resolution

2. Large aperture contributes to the quality and visibility of images

3. Large area ensures better light gathering ability.

4. All of the above

Answer key

Physics NEET MCQ for Current Electricity

1. In a given circuit diagram, what is the possible difference between points A and B?

1. 90v

2. 12v

3. 43v 

4. 75v

2. Thermocouples are based on which principal?

1. Peltier effects

2. Joule effect

3. Thomson effect

4. Seebeck effect 

3. Why are potentiometers used to make electrical measurements of EMF?

1. Since there is no flow of current through galvanometers 

2. Due to potential gradients.

3. As cells are involved.

4. Because this method consists of a combination.

4. What is the meaning of the internal resistance of a cell?

1. The vessel of a cell.

2. Electrolytes used in a cell 

3. Electrodes of a cell.

4. The resistance potential of materials used in cells.

5. The temperature coefficient of resistance is positive for;

1. Copper

2. Carbon

3. Germanium

4. An electrolyte 

6. In conductors, the relaxation time

1. Does not depend on the temperature

2. Increases with the increase in temperature

3. Sudden changes at 400 K

4. Decreases with the decrease in temperature.

7. In a series, the equivalent resistance of resistors is always

1. Less than the lowest of component resistors

2. Equal to the sum of component resistors

3. Equal to the mean of component resistors

4. In between the lowest and the highest of component resistors

8. There are two resistors that are connected a) in series and b) in parallel. The equivalent resistance in both cases is 9ohm and 2ohm. What is the resistance of the component resistors 

1. 3 OHM AND 9 OHM

2. 2 OHM AND 7 OHM

3. 5 OHM AND 4 OHM

4. 3 OHM AND 6 OHM

9. Three resistors are connected in such a way so as to form the sides of a triangle ABC. The resistance of the sides AB, BC, CA are 40 ohms,60 ohms and 100ohm. What will be the effective resistance between points A and B in ohms

1. 50

2. 200

3. 32

4. 64

10. With the use of only two resistance coils singly, either in series or in parallel should obtain the resistance of 3, 4, 12 and 16 ohms. Then what are the separate resistances of the coils?

1. 12 and 16

2. 4 and 12

3. 3 and 4

4. 16 and 3

Answer key

Physics MCQs on Electro Statistics

1. What is the law that governs forces between electric charges?

1. Coulomb’s law 

2. Faraday’s law

3. Ampere’s law

4. Ohm’s law

2. What is the minimum charge on a particle?

1. 6.6 x 10-19 Coulomb

2. 1.6 x 10-19 Coulomb 

3. 3.2 x 10-19 Coulomb

4. 1 Coulomb

3. Among the following, the capacity of parallel plate condensers depends on which one 

1. The thickness of the plate.

2. The metal is used for its construction.

3. The gap between plates

4. Potential applied across plates.

4. Capacitance of capacitors is not dependent on _____________________.

1. Size of the plates.

2. The shape of the plates.

3. The distance of separation between plates.

4. Charges present on the plates 

5. When an electric dipole is kept in the non-uniform electric field, it experiences ___________.

1. Both force and torque 

2. Neither force nor torque.

3. Only force.

4. Only torque.

6. A total of 26 drops of water, with equal size, are charged similarly. They are united to form a bigger drop of water. The electrical potential will change with what factor

1. 6 TIMES

2. 3 TIMES

3. 9 TIMES

4. 27 TIMES

7. The parallel plate capacitor is charged, and after that, the charging battery is disconnected. Now if the plates of the capacitor are moved apart with the help of insulating handles, 

1. The capacitance will increase.

2. The charge on the capacitor will increase

3. The electrostatic energy stored in the capacitor will increase

4. The voltage across the plates will decrease 

8. At a given point between the plates of the charged capacitor, the intensity of the electric field is;

1. Inversely proportional to the distance between the plates

2. Does not depend upon the distance between the plates

3. Directly proportional to the distance between the plates

4. Inversely proportional to the square of the distance between the plates. 

9. When the distance between the parallel plates of the capacitor is halved and when the dielectric constant is doubled, then the capacitance will;

1. Remain the same

2. Increase four times

3. Increase two times

4. Decrease two times

10. A solid conducting sphere with a charge Q is surrounded by an uncharged concentric that conducts a hollow spherical shell. The potential difference between the solid sphere’s surface and the hollow shell’s outer surface is V. When the shell is given the charge of -3Q, what will be the new potential difference between the two surfaces.

1. 2V

2. -2V

3. V

4. 4V

Answer Key

Physics MCQ Questions for Class 12 on Gravitation

1. What happens to the gravitational potential at the centre of a uniform spherical shell that shrinks progressively?

1. Increases

2. Remains constant

3. Oscillates

4. Decreases

2. The atmosphere surrounding the earth is held by _________.

1. Gravity 

2. Clouds

3. Winds

4. None of the above

3. If a satellite takes time T for revolution, then its kinetic energy is proportional to –

1. 1T

2. 1T2

3. 1T3

4. T−23 

4. Mention the relation between escape velocity and orbital velocity, when a satellite is close to the surface of the earth – 

1. ve=2v0−−−√

2. v0=2ve−−−√

3. ve=2–√v0 

4. v0 = ve

5. Among the following, on which factor does orbital velocity depend on when a satellite orbits close to the earth’s surface?

1. The orbital radius.

2. The radius of the earth 

3. Mass of the earth.

4. Mass of the satellite.

Answer key

These are some important physics multiple-choice questions that you can study and prepare for your NEET 2023. 

Since NEET 2023 is around the corner, physics MCQs can help you to ease your exam preparation. Solving MCQs will improve your accuracy during your exam and help you secure better grades.

Along with exploring various questions, you must also take care of your health during this phase of the final preparation. You should not develop any health-related issues to hamper your schedule for these final few days. Additionally, you can prepare well for physics by solving various mock NEET physics question papers. Such question papers can give you an idea of the questions you may face in the exam.