Modern Physics is the most important and repeated topic in NEET syllabus 2024. In the last 10 years, sections such as Photoelectric Effect, Dual Nature of Matter, Atoms, and Nuclei have been repeated year after year in the NEET exam.

Most Important Topics of NEET 2025 (Modern Physics):-

According to the trend analysis of NEET previous year question papers, the following topics have higher weightage in NEET 2025:

  • Photoelectric Effect & Einstein's Equation
  • Dual Nature of Matter & de Broglie Wavelength
  • Bohr's Atomic Model & Hydrogen Spectrum
  • Radioactivity (Alpha, Beta, Gamma Decay
  • Semiconductors, Logic Gates & Diodes

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Listed below the most repeated questions NEET Previous Year Questions (PYQs) for Modern Physics along with detailed solutions


 
1. If φ is the work function value λ = hc/ε metre, is incident on it with energy above its threshold value numerous value λ = hc/ε metre, is incident on it with energy above its threshold value at an instant then the maximum kinetic energy of the photo-electron ejected by it at that instant (Take h-Planck’s constant, c-velocity of light in free space) is (in SI units):
NEET (UG) - 2024 NEET (UG) 
A) e + 2φ
B) 2e - φ
C) e - φ
D) e + φ
View Solution
2. The value of Planck's constant is
NEET (UG) - 2002 NEET (UG) 
A) 6.63 × 10-34 J/sec.
B) 6.63 × 10-34 kg - m2/sec
C) 6.63 × 10-34 kg - m2
D) 6.63 × 10-34 J - sec.
View Solution
3. The power radiated by a black body is P and it radiates maximum energy at wavelength, λ0. If the temperature of the black body is now changed so that it radiates maximum energy at wavelength 3/4 λ0, the power radiated by it becomes nP. The value of n is
NEET (UG) - 2018 NEET (UG) 
A) 256/81
B) 3/4
C) 81/256
D) 4/3
View Solution
4. The cathode of a photoelectric cell is changed such that the work function changes from W1 to W2 (W2 > W1). If the current before and after changes are I1 and I2, all other conditions remaining unchanged, then (assuming hν > W2)
NEET (UG) - 1982 NEET (UG) 
A) I1 = I2
B) I1 < I2
C) I1 > I2
D) I1 < I2 < 2I1
View Solution
5. The momentum of a photon of an electromagnetic radiation is 3.3 × 10-29 kg m s-1. What is the frequency of the associated waves ? [h = 6.6 × 10-34 J s; c = 3 × 108 m s-1]
NEET (UG) - 1900 NEET (UG) 
A) 1.5 × 10-13 Hz
B) 7.5 × 10-12 Hz
C) 6 × 103 Hz
D) 3 × 103 Hz
View Solution
6. Given below are two statements:
Statement I: Atoms are electrically neutral as they contain equal number of positive and negative charges.
Statement II: Atoms of each element are stable and emit their characteristic spectrum.
In the light of the above statements, choose the most appropriate answer from the options given below
NEET (UG) - 2024 NEET (UG) 
A) Both Statement I and Statement II are correct
B) Both Statement I and Statement II are incorrect
C) Statement I is correct but Statement II is incorrect
D) Statement I is incorrect but Statement II is correct
View Solution
7. Match List I with List II.
List I
(Spectral Lines of Hydrogen for transitions from)		 List II
(Wavelength (nm))
A. n2 = 3 to n1 = 2 I. 410.2
B. n2 = 4 to n1 = 2 II. 434.1
C. n2 = 5 to n1 = 2 III. 656.3
D. n2 = 6 to n1 = 2 IV. 486.1

Choose the correct answer from the options given below:

NEET (UG) - 2024 NEET (UG) 
A) A-I, B-II, C-IV, D-III
B) A-III, B-IV, C-II, D-I
C) A-IV, B-III, C-I, D-II
D) A-I, B-II, C-III, D-IV
View Solution
8. An electron and an alpha particle are accelerated by the same potential difference. Let λe and λα denote the de-Broglie wavelengths of the electron and the alpha particle, respectively, then:
NEET (UG) - 2024 NEET (UG) 
A) λe > λα
B) λe = 4λα
C) λe = λα
D) λe < λα
View Solution

Modern Physics Chapter-Wise Weightage for NEET 2025:

Chapter/Topic Weightage (%)
Dual Nature of Radiation and Matter 3%
Atoms 3%
Nuclei 4%
Electronic Devices 5%
TOTAL 15%

Modern Physics Formula Sheet for NEET Exam:

Topic Formula
Dual Nature of Matter and Radiation E = hν (Energy of a photon)
p = h/λ (Momentum of a photon)
λ = h/mv (de Broglie wavelength)
K.E. = hν - W (Photoelectric effect)
Atoms En = -13.6/n2 eV (Energy of an electron in nth orbit)
rn = n2h2ε0/πmZe2 (Radius of electron orbit)
vn = Ze2/nε0h (Velocity of electron in nth orbit)
λ = h/mv (de Broglie wavelength for electron)
Nuclei R = R0A1/3 (Radius of nucleus)
E = 53R0GM2 (Gravitational binding energy of nucleus)
E = 1 - c2vmc (Relativistic energy)
Radioactivity N(t) = N0e-λt (Radioactive decay)
T1/2 = ln2/λ (Half-life)
A = λN (Activity of a sample)
Electronic Devices V = IR (Ohm's Law)
P = I2R = V2/R (Power in resistive circuit)
C = ε0A/d (Capacitance of a parallel plate capacitor)
Q = CV (Charge stored on a capacitor)
X-Ray Spectrum λ = h/mv (de Broglie wavelength)
EK = hf - W (Kinetic energy of the emitted electrons)
Photoelectric Effect K.E. = hf - W (Energy required to release an electron)

Modern Physics Difficulty Level Analysis in NEET (Past 5 Years):

Year Modern Physics Difficulty Easy (%) Moderate (%) Hard (%)
2024 Moderate-Hard 30% 50% 20%
2023 Moderate 40% 45% 15%
2022 Easy-Moderate 50% 40% 10%

NEET Last 10 Year Question Papers Pdf For NEET 2025 Preparation (2024 - 2017)

You can download the NEET previous year question paper pdfs with solutions from the table given below:

NEET UG Previous Question Papers By NTA Download PDF
NEET 2024 Question Paper With Solutions  Check Here
NEET 2023 Question Paper With Solutions  Check Here
NEET 2022 Question Paper With Solutions  Check Here
NEET 2021 Question Paper With Solutions  Check Here
NEET 2020 Question Paper With Solutions  Check Here
NEET 2019 Question Paper With Solutions  Check Here
NEET 2018 Question Paper With Solutions  Check Here
NEET 2017 Question Paper With Solutions  Check Here

Frequently Asked Questions:-
 

1. How many questions are asked from modern physics in NEET?

In NEET, modern physics typically consists of 3 to 4 questions. Laws of Motion, Thermodynamics, Modern Physics (Atomic Structure, Photoelectric Effect, etc.), and Nuclear Physics are among the subjects that typically pose these queries. Refer to the general format of the questions, and improve your preparation by looking at the Modern Physics NEET questions PDF and Modern Physics NEET questions and answers.

2. Can I score 120 in NEET Physics?

Yes, 120 is achievable in NEET Physics by adhering to a proper study schedule, staying on key topics, regular practice, and the solution of last year papers. For all round practice, the use of Physics NEET questions with solutions PDF is helpful. Additionally, use of Physics chapter-wise questions for NEET PDF free download will be a nice way to develop your preparation further, emphasizing points that are given most frequently.

3. Is NCERT enough for modern physics in NEET?

NCERT textbooks, are necessary for preparing the basics of Modern Physics. Yet, it is advisable to look at other study materials or attempt NEET-specific question papers to reinforce your knowledge and solve complex questions. Modern Physics NEET questions and answers PDF can be a helpful guide to enhance your knowledge.

4. How to get 170 in NEET Physics?

Scoring 170 in NEET Physics needs a strong grasp of fundamental concepts, regular practice, and time management. Practice previous year question papers, learn high-weightage chapters, and maintain your concepts clear. Physics NEET questions with solutions PDF in English and NEET Physics PYQ with solutions are excellent resources to practice and monitor your improvement.

5. Where do I get PDF resources for Photoelectric Effect NEET questions?

You may take a look at the Photoelectric Effect NEET questions PDF for an array of questions which are most relevant to the NEET syllabus. For more specific practice, you may also employ Photoelectric Effect atomic model NEET questions and answers PDF.

6. Are practice questions and answers for the Photoelectric Effect available?

Yes, you may download a detailed set of Photoelectric Effect questions and answers PDF which will allow you to practice problems on the subject and develop your problem-solving skills for NEET.

7. How can I prepare myself for the Photoelectric Effect subject for NEET?

To prepare for the Photoelectric Effect in NCERT books for NEET, you can utilize Photoelectric Effect PYQ NEET and other tools like Photoelectric effect atomic model NEET questions and answers to practice and grasp the types of questions that often come in the exam.

8. Can I prepare for the Photoelectric Effect in NEET using JEE Advanced questions?

Yes, it can be helpful to solve Photoelectric effect JEE Advanced questions because they give a clearer understanding of the concept. Make sure to solve NEET-specific questions such as Questions on Photoelectric Effect Class 11 Chemistry for focused practice.