MASTER REVISION FILE
Factor 45
Dual Nature of
Matter & Radiation
Atoms
Nuclei
NEET Simplified Physics
2025 with AG Sir
MODERN PHYSICS
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dks /;ku j[krs gq, ,d dk ysdj vk, gSa
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;g og gS ftudks fjohtu djus ij vkidk iwjk 'kkunkj rS;kj gks tkrk gSA
bu ls eSa d:¡xk
• ds dqN dqN
Modern Physics (Master Revision file)
• dqN ds
• dqN ds
• dqN esjs ds
• dsA
ftudks djus ls iwjk vkids dCts esa vk tk;sxk
rS;kjh thr dh
cksys rks
Telegram: - https://t.me/SimplifiedPhysicsag
, Target NEET 2025 Simplified Physics with AG Sir
MODERN PHYSICS
Syllabus for NEET 2025
Dual nature of radiation. Photoelectric effect. Hertz and Lenard's observations; Einstein's photoelectric equation:
particle nature of light. Matter waves-wave nature of particle, de Broglie relation.
Alpha-particle scattering experiment; Rutherford's model of atom; Bohr model, energy levels' hydrogen
spectrum. Composition and size of nucleus, atomic masses, Mass-energy relation, mass defect; binding energy
per nucleon and its variation with mass number, nuclear fission, and fusion.
Paper Trend’s Analysis
Year No. of Q. Concept asked
Hydrogen Spectrum, Photon Theory, Atoms, (α, β, γ) Decay, De-Broglie
NEET 2024 5
wavelength (graph)
NEET 2023 4 Hydrogen spectrum, Bohr’s atomic theory, X ray, PEE
Nuclear Radius, (α, β, γ) Decay, Bohr’s model, de-Broglie wavelength
NEET 2022 5
(graph), PEE (Einstein equation)
NEET 2021 4 Binding Energy, Photon Theory, (α, β, γ) Decay, De-Broglie wavelength
NEET-Covid 2020 3 De-Broglie wavelength, (α, β, γ) Decay, Bohr’s atomic model
Modern Physics (Master Revision file)
1. Photo electric effect is the phenomenon in which 5. An electron is accelerated from rest through a
(1) Photons come out of a metal when it is hit potential difference of V volt. If the de Broglie
by a beam of electrons –2
wavelength of the electron is 1.227 × 10 nm, the
(2) Photons come out of the nucleus of an atom
potential difference is : [NEET-2020]
under the action of an electric field
3 4
(3) Electrons come out of metal with a constant (1) 10 V (2) 10 V
velocity depending on frequency and (3) 10 V
2
(4) 10 V
intensity of incident light
(4) Electrons come out of a metal with different
6. Light of two different frequencies whose photons
velocity not greater than a certain value
which depends only on the frequency of the have energies of 1 eV and 2.5 eV are incident one
incident light wave and not on its intensity. by one on a metal surface of work function 0.5 eV.
The ratio of maximum energies of emitted
2. When an electro–magnetic radiation is incident on electrons will be
the surface of metal, maximum kinetic energy of
(1) 1 : 4 (2) 4 : 1
photoelectron depends on–
(3) 1 : 2 (4) 2 : 1
(1) Frequency of radiation
(2) Intensity of radiation
(3) Both the frequency and intensity 7. The work functions of tungsten and sodium are
(4) Polarization of radiation 5.06 eV and 2.53 eV respectively. If the threshold
wavelength for sodium is 5896 Å, then the
3. A particle is dropped from a height H. The de
threshold wavelength for the tungsten will be
Broglie wavelength of the particle as a function
of height is proportional to [NCERT EXEMPLAR] (1) 11792 Å (2) 5896 Å
(1) H (2) H
1/2 (3) 4312 Å (4) 2948 Å
0 –1/2
(3) H (4) H
8. The wavelength of a photon needed to remove a
4. The maximum kinetic energy of photoelectrons proton from a nucleus which is bound to the
emitted from a surface when photons of energy
nucleus with 1 MeV energy is nearly
6 eV fall on it is 4 eV. The stopping potential in
[NCERT EXEMPLAR]
volts is :
–3
(1) 2 (2) 4 (1) 1.2 nm (2) 1.2 × 10 nm
(3) 6 (4) 10 (3) 1.2 × 10
–6
nm (4) 1.2 × 10 nm
1
Telegram: - https://t.me/SimplifiedPhysicsag 1
Factor 45
Dual Nature of
Matter & Radiation
Atoms
Nuclei
NEET Simplified Physics
2025 with AG Sir
MODERN PHYSICS
, dkQh cPpksa dks ges'kk ;g fnDdr gksrh gS fd ds vafre le; ij D;k i<+k tk, ]dgk¡ ls djsa \
D;k iwjk djsa okil djsa iqjkus isij l‚Yo djsa \ D;k i<+s \ fdl rjg ls fjohtu djsa blh ckr
dks /;ku j[krs gq, ,d dk ysdj vk, gSa
;g ,d djus dk rjhdk gS ftlls 'kkunkj vkidh rS;kjh gksxh vkSj vki esa cgqr vPNk djds
vk,axs dk ;g gS tSls esa las
esa ns[ksaxs rks vk,a gSa eryc gqvk rks mldks tc ge ls
djsaxs rks og vk,xk
;g og gS ftudks fjohtu djus ij vkidk iwjk 'kkunkj rS;kj gks tkrk gSA
bu ls eSa d:¡xk
• ds dqN dqN
Modern Physics (Master Revision file)
• dqN ds
• dqN ds
• dqN esjs ds
• dsA
ftudks djus ls iwjk vkids dCts esa vk tk;sxk
rS;kjh thr dh
cksys rks
Telegram: - https://t.me/SimplifiedPhysicsag
, Target NEET 2025 Simplified Physics with AG Sir
MODERN PHYSICS
Syllabus for NEET 2025
Dual nature of radiation. Photoelectric effect. Hertz and Lenard's observations; Einstein's photoelectric equation:
particle nature of light. Matter waves-wave nature of particle, de Broglie relation.
Alpha-particle scattering experiment; Rutherford's model of atom; Bohr model, energy levels' hydrogen
spectrum. Composition and size of nucleus, atomic masses, Mass-energy relation, mass defect; binding energy
per nucleon and its variation with mass number, nuclear fission, and fusion.
Paper Trend’s Analysis
Year No. of Q. Concept asked
Hydrogen Spectrum, Photon Theory, Atoms, (α, β, γ) Decay, De-Broglie
NEET 2024 5
wavelength (graph)
NEET 2023 4 Hydrogen spectrum, Bohr’s atomic theory, X ray, PEE
Nuclear Radius, (α, β, γ) Decay, Bohr’s model, de-Broglie wavelength
NEET 2022 5
(graph), PEE (Einstein equation)
NEET 2021 4 Binding Energy, Photon Theory, (α, β, γ) Decay, De-Broglie wavelength
NEET-Covid 2020 3 De-Broglie wavelength, (α, β, γ) Decay, Bohr’s atomic model
Modern Physics (Master Revision file)
1. Photo electric effect is the phenomenon in which 5. An electron is accelerated from rest through a
(1) Photons come out of a metal when it is hit potential difference of V volt. If the de Broglie
by a beam of electrons –2
wavelength of the electron is 1.227 × 10 nm, the
(2) Photons come out of the nucleus of an atom
potential difference is : [NEET-2020]
under the action of an electric field
3 4
(3) Electrons come out of metal with a constant (1) 10 V (2) 10 V
velocity depending on frequency and (3) 10 V
2
(4) 10 V
intensity of incident light
(4) Electrons come out of a metal with different
6. Light of two different frequencies whose photons
velocity not greater than a certain value
which depends only on the frequency of the have energies of 1 eV and 2.5 eV are incident one
incident light wave and not on its intensity. by one on a metal surface of work function 0.5 eV.
The ratio of maximum energies of emitted
2. When an electro–magnetic radiation is incident on electrons will be
the surface of metal, maximum kinetic energy of
(1) 1 : 4 (2) 4 : 1
photoelectron depends on–
(3) 1 : 2 (4) 2 : 1
(1) Frequency of radiation
(2) Intensity of radiation
(3) Both the frequency and intensity 7. The work functions of tungsten and sodium are
(4) Polarization of radiation 5.06 eV and 2.53 eV respectively. If the threshold
wavelength for sodium is 5896 Å, then the
3. A particle is dropped from a height H. The de
threshold wavelength for the tungsten will be
Broglie wavelength of the particle as a function
of height is proportional to [NCERT EXEMPLAR] (1) 11792 Å (2) 5896 Å
(1) H (2) H
1/2 (3) 4312 Å (4) 2948 Å
0 –1/2
(3) H (4) H
8. The wavelength of a photon needed to remove a
4. The maximum kinetic energy of photoelectrons proton from a nucleus which is bound to the
emitted from a surface when photons of energy
nucleus with 1 MeV energy is nearly
6 eV fall on it is 4 eV. The stopping potential in
[NCERT EXEMPLAR]
volts is :
–3
(1) 2 (2) 4 (1) 1.2 nm (2) 1.2 × 10 nm
(3) 6 (4) 10 (3) 1.2 × 10
–6
nm (4) 1.2 × 10 nm
1
Telegram: - https://t.me/SimplifiedPhysicsag 1
