The important topics in NEET Physics from where candidates can expect at least 2-3 questions are Magnetic Effect of Current & Magnetism, Thermodynamics, Mechanics of Solids & Fluids, etc. In this article, we have presented chapter-wise important questions that are helpful while preparing for the NEET. Check NEET Physics Syllabus

NEET Questions Paper will be based on the chapters studied in Class 11 & 12 NCERT textbooks. NEET 2021 is expected to be held in the month of July which means candidates are left with around 4 months of preparation. Candidates can check out a few important questions with correct answers and solutions to ace up their preparations.

NEET Chapter Wise Weightage of Physics Syllabus

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Sample Questions from NEET Physics with solutions

Some of the important questions & answers for preparation NEET from the Physics section are mentioned underneath:

Questions on Coulombs Law

Ques: How many electrons are there in ‒1 coulomb?

1. 6.25 × 1018
2. 62.5 × 1018
3. 6.023 × 1023
4. 1.6 × 10-19

Solution of the Question: 

Since q = n e.

Q is equal to 1 C, e equal to 1.6 × 10‒19 C, then calculate n

Thus, n = 0.625 × 1019 = 6.25 × 1018.

The correct option is A

Ques: If VA and VB are two points placed on a curved equipotential surface then, choose the correct option

1. VA> VB
2. VA< VB
3. VA= VB
4. Relation between the two can’t be predicted

Solution of the Question:

Since all the points in an equipotential surface have the same potential. Thus VA would be equal to VB.

The correct option is D

Questions on Work, Energy, Power and Resistance

Ques: 100 joule of work performed holds a charge of ‒5 coulomb from infinity to a particular point in a uniform electrostatic field. Calculate the potential of this point?

1. 100 V
2. 5 V
3. -20V
4. 20 V

Solution of the Question:

Solution: Charge = q = ‒ 5 C, work done = W = 100 Joule.

Let V be the potential then,

As, W equal to q × V ⇒ 100 equal to ‒ 5 × V ⇒ V = ‒ 20 V.

The correct option is C

Ques: A hollow metal sphere of a radius 10 cm will be charged in such a way that the potential on its surface would be 80 volt. You need to calculate the potential at the center of the sphere?

1. 8 volt
2. 800 volt
3. 80 volt
4. Zero

Solution of the Question: 

The potential at any point inside the charged metallic hollow sphere will be equal to the potential at its surface. Thus the potential at its centre would be 80 V.

The correct option is C

Ques: If 400 Ω resistance is made by doing the addition of four 100 Ω resistance of tolerance 5%, then you need to calculate the tolerance of the combination?

1. 5%
2. 10%
3. 15%
4. 20%

Solution of the Question: 

In case four resistances of 100Ω and tolerance 5% are connected in series then, total resistance will be 400 Ω but tolerance will remain 5%.

The correct option is A

Ques: Resistance n, each of r Ω, on connecting in parallel offers an equivalent resistance of R Ω. In case thee resistances are connected in series, the combination having resistance in Ω, would be equal to

1. n2R
2. R / n2
3. R / n
4. nR

Solution of the Question: 

When n resistors of resistance R combined in parallel then their equivalent resistance is given by (r/n) = R ⇒ r = n R. When n resistors of resistance R will be combined in series then their equivalent resistance will be mentioned as n r ⇒ n (n R) ⇒ n2R.

The correct option is A.

Ques: A copper wire is stretched in such a way that make it 0.2%. Calculate the percentage change in its resistivity?

1. 0.4 %
2. 2.0 %
3. 4.0 %
4. None of these

Solution of the Question:

No change in its resistivity will be observed as the resistivity of a material is dependent on the nature of the material and the surrounding temperature.

The correct option is D.

Must Read:

• NEET Study Notes for Current Electricity
• NEET Study Notes for Wave Optics
• NEET Study Notes for Thermodynamics

Questions on Magnetic Field

Ques: What is the value of angle of dip at the magnetic equator?

1. 0o
2. 90o
3. 45o
4. Nearly 30o

Solution of the Question: 

The value of the angle of dip at the magnetic equator would be equal to zero degree.

The correct option is A. 

Ques: A bar-magnet falls down from a conducting coil. Calculate the acceleration of the bar magnet?

1. less than g
2. greater than g
3. equal to g
4. Unpredictable

Soltuion of the Question: 

Acceleration of the bar magnet will be lower than ‘G’. In case the magnet falls down, an induced current will be produced in the coil, resulting the magnetic field will be produced in such a way that it opposes the freely falling magnet (Lenz’s law).

When the magnet will fall down, then current will be induced in the opposite direction, because of which the magnetic field will be produced in such a way that it again opposes the free fall of the magnet.

The correct option is A. 

Ques: The magnetic flux threading a coil changes from 12 Wb to 6 Wb with a second. You are supposed to calculate the value of induced emf?

1. 3 volt
2. ‒ 3 volt
3. 6 volt
4. ‒ 6 volt

The correct option is D.

Questions on Bohr Model

Ques: Choose one of the correct options for which the Bohr model will not be valid?

1. Hydrogen atom
2. Singly ionised helium atom (He+)
3. Deuteron atom
4. Singly ionised neon atom (Ne+)

Solution of the Question: 

Bohr model will be applicable on a single electron species. Singly ionised neon atom has higher than one electron in orbit. Hence, Bohr model will not be considered valid.

The correct option is D.

Ques: What will be the interface for the Brewsters angle ib?

1. A0°
2. B30°
3. C45°
4. Dib=90°

Solution of the Question: 

Since μ=tanib

1<μ<∞

1

tan−1(1)

45∘∘

The correct option is C. 

Ques: Two cylinders named A and B having equal capacity gets connected to each other with a stop clock. A contains the required gas at standard temperature and pressure while B is totally evacuated. The entire system is thermally insulated. The stop cock is suddenly opened, what this process would be called?

1. Aisothermal
2. Badiabatic
3. Cisochoric
4. Disobaric

Solution of the Question: 

Free expansion that is expansion against vacuum is adiabatic in nature for all kind of gases. It must be noted that the final temperature would be equal to initial temperature for ideal gases

The correct option is B.

Questions on Magnitude of Electric Field and Temperature

Ques: The energy equivalent of 0.5 g of a substance would be equal to:

1. A4.5×1016J
2. B4.5×1013J
3. C1.5×1013J
4. D0.5×1013J

Solution of the Question:

From mass-energy equivalence,

E=mc2

=0.5×10−3×9×1016

=4.5×1013J

The correct option is B.

Ques: The solids having negative temperature coefficient of resistance would be:

1. Ametals
2. Binsulators only
3. Csemiconductors only
4. Dinsulators and semiconductors

The correct option is D. For metals temperature coefficient of resistance is positive while for insulators and semiconductors, temperature coefficient of resistance would be negative.

Ques: In a certain region of space with volume 0.2m3, the electric potential would remain to be 5V throughout. The magnitude of electric field here would be:

1. A zero
2. B 0.5 N/C
3. C 1 N/C
4. D 5 N/C

The correct option would be A. Since electric potential is found throughout constant, hence electric field, E=−dVdt=0

Must Read: 

• NEET Study notes for Dual Nature of Matter & Radiation
• NEET Study notes for Magnetism & Moving Charges
• NEET Study notes for Kinematics

Questions on Wave Optics

Ques: Which of the following statement is wrong?

1. The energy is more in Infrared photon than the photon of visible light
2. Photographic plates are sensitive to ultraviolet rays
3. Photographic plates can be made sensitive to infrared rays
4. Infrared rays are invisible but can cast shadows like visible light rays

Solution of the Question: 

The energy is more in Infrared photon than the photon of visible light

The correct answer is A

Ques: The heating effect is caused by?

1. Ultraviolet
2. Infrared
3. Visible light
4. All of these

Solution of the Question: 

Infrared causes heating effect.

The correct answer is B

Ques: The speed of electromagnetic wave in vacuum depends upon the source of radiation?

1. If we move from g-rays to radio waves increases
2. If we move from g-rays to radio waves decreases
3. Is same for all of them
4. None of these

Solution of the Question: 

Speed of EM waves in vacuum = 1/√μ0∈0=constant

The correct answer is C

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