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Physics · Class 12 Science

Gujarat Gseb Class 12 Physics — Real Previous-Year Papers

with complete answers

Real previous-year board papers, year by year — the official exam pattern, the full question paper, and every question solved the concept-first way. Distinct from the chapter-wise textbook bank.

2018–2026
Years of papers
8
Total Papers
8
Real Board Papers
0
Sample papers
581
Real-paper Q & A
0
Sample-paper Q & A

Real board-paper questions available, by year

77 Q2026complete
78 Q2025complete
77 Q2024complete
—2023Paper not yet available
77 Q2022complete
—2021Exam cancelled (COVID-19)
68 Q2020complete
68 Q2019complete
—2018Paper not yet available

2023 — Paper not yet available: This year’s exam was held, but no verified question paper for this subject has been published by any source we check — the official GSEB archive and the public past-paper archives. We publish only a paper we can verify against a real printed original — this one will appear here once it is.

2021 — Exam cancelled (COVID-19): GSEB cancelled the Class-12 Higher Secondary Certificate (HSC) Examination in 2021 due to COVID-19; students were promoted via internal/alternative assessment. No exam was administered that year, so there is no genuine previous-year paper to publish.

2018 — Paper not yet available: This year’s exam was held, but no verified question paper for this subject has been published by any source we check — the official GSEB archive and the public past-paper archives. We publish only a paper we can verify against a real printed original — this one will appear here once it is.

GSEB Higher Secondary Certificate (HSC) Examination 2026 · Set ANNUAL

Real board examination

About this paper

The real Class-12 board examination held in 2026. Every question below is solved the concept-first way. Sample papers are labelled honestly — never shown as a past exam.

Total marks
100
Questions
68
Duration
180 min
Sections
4

The marks / questions / duration above are the official exam pattern. We currently have 77 of this paper’s questions (113% of the full paper), with 77 fully solved. Questions we couldn’t yet extract or verify are held — never shown as complete.

Sections & marks

SectionTypeQuestionsMarks eachTotal
Part ASection Part Amcq50150
Part B - Section ASection Part B - Section Asubjective8216
Part B - Section BSection Part B - Section Bsubjective6318
Part B - Section CSection Part B - Section Csubjective4416
Total68100

The question paper

The questions we hold for this paper, laid out by section. Solutions are on the Answers tab.

Board Examination

Physics

GSEB Higher Secondary Certificate (HSC) Examination 2026 · Set ANNUAL

Series/Set: ANNUALRoll No. ________
Time Allowed: 3 hoursMaximum Marks: 100

General Instructions

  1. This question paper contains 68 questions divided into 4 sections — Part A, Part B - Section A, Part B - Section B, Part B - Section C.
  2. Section Part A comprises 50 questions of 1 mark each (mcq).
  3. Section Part B - Section A comprises 8 questions of 2 marks each (subjective).
  4. Section Part B - Section B comprises 6 questions of 3 marks each (subjective).
  5. Section Part B - Section C comprises 4 questions of 4 marks each (subjective).

Above is the official exam pattern. The questions printed below are those we currently hold for this paper.

Section A

Q1.
The direction of induced emf during electromagnetic induction is given by ___.
  • (a) Lenz's law
  • (b) Gauss's law
  • (c) Maxwell's law
  • (d) Faraday's law
[1]
Q2.
A wheel with 10 metallic spokes each 0.5 m long is rotated with a speed of 120 rev/min in a plane normal to the horizontal component of earth's magnetic field H_E at a place. If H_E = 0.4 G at the place, what is the induced emf between the axle and the rim of the wheel? [1G = 10^-4 T]
  • (a) 12.56 x 10^-4 V
  • (b) 12.56 x 10^-3 V
  • (c) 6.28 x 10^-4 V
  • (d) 6.28 x 10^-5 V
[1]
Q3.
A.C. generator converts ___.
  • (a) mechanical energy into electrical energy
  • (b) mechanical energy into heat energy
  • (c) mechanical energy into light energy
  • (d) electrical energy into mechanical energy
[1]
Q4.
For an AC given by i = 100 cos (200t + 45 degrees) A, then value of I_rms = ___.
  • (a) 100 A
  • (b) 100 sqrt(2) A
  • (c) 50 A
  • (d) 50 sqrt(2) A
[1]
Q5.
In LCR series AC circuit, R = sqrt(7) Ohm, X_L = 11 Ohm and X_C = 8 Ohm, then the value of impedance Z is ___.
  • (a) 2 Ohm
  • (b) 8 Ohm
  • (c) 4 Ohm
  • (d) 16 Ohm
[1]
Q6.
Wavelength of X-rays, Infrared rays and Ultraviolet rays are lambda_1, lambda_2 and lambda_3 respectively. Then ___.
  • (a) lambda_1 > lambda_3 > lambda_2
  • (b) lambda_1 < lambda_2 < lambda_3
  • (c) lambda_1 < lambda_3 < lambda_2
  • (d) lambda_1 > lambda_2 > lambda_3
[1]
Page 1 of 10
Q7.
The amplitude of the magnetic field of Electromagnetic wave is B₀ = 510 nT, then amplitude of electric field of Electromagnetic wave is E₀ = __. (a) 143 V/m (b) 153 V/m (c) 135 V/m (d) 170 V/m
[1]
Q8.
The refractive index of medium 3 with respect to medium 2 is n₃2 = __. (a) n₃1 x n₁2 (b) n₃1 x n₂1 (c) n₁3 x n₂1 (d) n₁3 x n₁2
[1]
Q9.
From the following which one is the lens maker's formula? (a) 1/f = (n₁2 + 1)(1/R₁ - 1/R₂) (b) 1/f = (n₁2 - 1)(1/R₁ - 1/R₂) (c) 1/f = (n₂1 - 1)(1/R₁ - 1/R₂) (d) 1/f = (n₂1 + 1)(1/R₁ - 1/R₂)
[1]
Q10.
If path difference between two waves is 3 lambda then phase difference related with them is __. (a) 4 pi rad (b) 3 pi rad (c) 2 pi rad (d) 6 pi rad
[1]
Q11.
Consider sunlight incident on a slit a width 10⁴ Angstrom. The image seen through the slit shall __. (a) a bright slit white at the center diffusing to regions of different colours (b) be a fine sharp slit white in colour at the center (c) a bright slit white at the center diffusing to zero intensities at the edges (d) only be a diffused slit white in colour
[1]
Q12.
The de Broglie wavelength of proton and alpha-particle is same. The ratio of their velocities is __. (a) 4 : 1 (b) 1 : 2 (c) 2 : 1 (d) 1 : 4
[1]
Q13.
Slope of the graph of stopping potential (V₀) vs frequency (nu) is __. (a) zero (b) phi₀ / e (c) h / e (d) phi₀
[1]
Q14.
Monochromatic light of frequency 6.0 x 10¹4 Hz is produced by a laser. The power emitted is 2.0 x 10^-3 W. How many photons per second on an average, are emitted by the source? (a) 0.5 x 10¹5 (b) 0.5 x 10¹7 (c) 5 x 10¹7 (d) 5 x 10¹5
[1]
Q15.
A proton, a neutron, an electron and an alpha-particle have same energy. Then their de-Broglie wavelengths compare as (a) lambdae = lambdap = lambdaₙ = lambdaa (b) lambdae < lambdap = lambdaₙ > lambdaa (c) lambdaa < lambdap = lambdaₙ < lambdae (d) lambdap = lambdaₙ > lambdae > lambdaa
[1]
Q16.
The photoelectric cut-off voltage in a certain experiment is 1.5V. The maximum kinetic energy of emitted photoelectrons is __. (a) 2.4 x 10^-20 J (b) 1.5 eV (c) 15 eV (d) 2.4 x 10^-18 J
[1]
Page 2 of 10
Q17.
The size of the atom in Thomson's model is __ the atomic size in Rutherford's model. (a) much greater than (b) no different from (c) much less than (d) none of the above
[1]
Q18.
In Hydrogen atom energy of electron in first excited state is __. (a) -3.40 eV (b) -1.51 eV (c) -0.85 eV (d) -13.6 eV
[1]
Q19.
alpha-particle scattering experiment is done __. (a) to investigate alpha-particle emission (b) to investigate nucleus structure (c) to investigate electronic configuration (d) to investigate atomic structure
[1]
Q20.
If impact parameter is very small, then scattering angle theta is __ rad. (Where, theta is the scattering angle of alpha-particle) (a) pi/4 (b) 0 (c) pi (d) pi/2
[1]
Q21.
198(80)Hg and 197(79)Au are __ of each other. (a) isomer (b) isotone (c) isotopes (d) isobar
[1]
Q22.
Complete the Nuclear fission equation given below. n(0,1) + U(92,235) -> Sb(51,133) + __ + 4 n(0,1) (a) Ba(56,144) (b) Kr(36,89) (c) Nb(41,99) (d) Sr(38,94)
[1]
Q23.
Nuclear Binding Energy (Eb) is __. (a) Energy required to break an atom into electrons, protons and neutrons (b) Energy required to break a nucleus into its nucleons (c) Energy required to remove all electrons of the atom (d) Energy required to separate nucleus from its atoms
[1]
Q24.
Radius of nucleus of Al(13,27) and Zn(30,64) is R₁ and R₂ respectively. Then R₁/R₂ = __. (a) 13/30 (b) 27/64 (c) 9/16 (d) 3/4
[1]
Q25.
Equivalent energy of 2 g of substance is __. (a) 18 x 10¹3 J (b) 9 x 10¹3 J (c) 6 x 10¹1 J (d) 6 x 10⁸ J
[1]
Q26.
When a forward bias is applied to a p-n junction, it (a) raises the potential barrier (b) reduces the majority carrier current to zero (c) lowers the potential barrier (d) none of the above
[1]
Page 3 of 10
Q27.
Dynamic resistance of a diode is given by __. (a) rd = -(Delta I / Delta V) (b) rd = Delta I / Delta V (c) rd = -(Delta V / Delta I) (d) rd = Delta V / Delta I
[1]
Q28.
From the following which is not appropriate statement to reduce the ripples in a rectifier circuit with capacitor filter __. (a) capacitors with high capacitance should be used (b) input frequency should be decreased (c) input frequency should be increased (d) RL should be increased
[1]
Q29.
In half-wave rectification, what is the output frequency if the input frequency is 60 Hz? (a) 90 Hz (b) 30 Hz (c) 60 Hz (d) 120 Hz
[1]
Q30.
In an unbiased p-n junction, holes diffuse from the p-region to n-region because (a) free electrons in the n-region attract them (b) hole concentration in p-region is more as compared to n-region (c) they move across the junction by the potential difference (d) all the above
[1]
Q31.
Unit of linear charge density is __. (a) C/m² (b) C m (c) C m² (d) C/m
[1]
Q32.
If 10¹0 electrons move out of a body to another body every second, how much time is required to get a total charge of 1C on the other body? (a) 6.25 x 10^-9 s (b) 6.25 x 10⁹ s (c) 6.25 x 10⁸ s (d) 6.25 x 10¹0 s
[1]
Q33.
An electric dipole with dipole moment 4 x 10^-9 C m is aligned at 30 degrees with the direction of a uniform electric field of magnitude 5 x 10⁴ NC^-1. What is the magnitude of the torque acting on the dipole? (a) 10^-4 Nm (b) 10⁴ Nm (c) 10² Nm (d) 10^-2 Nm
[1]
Q34.
Dimensional formula of Electric field is __. (a) M¹ L¹ T^-2 A¹ (b) M¹ L¹ T^-3 A^-1 (c) M¹ L¹ T^-1 A^-1 (d) M¹ L^-1 T^-3 A¹
[1]
Q35.
A point charge of 2.0 microC is at the centre of a cubic Gaussian surface 9.0 cm on edge. The net electric flux through the surface is __ Nm²/C. (a) 2.2 x 10^-6 (b) 2.2 x 10⁵ (c) 2.2 x 10⁶ (d) 2.2 x 10^-5
[1]
Page 4 of 10
Q36.
Distance between two charges q₁ and q₂ is r, the force between them is F. The distance between them increase and it becomes 3r, the electrostatic force will be __. (a) 3F (b) F/3 (c) F/9 (d) 9F
[1]
Q37.
A 12 pF capacitor is connected to a 50V battery. Electrostatic energy stored in the capacitor is __. (a) 1.5 x 10⁸ J (b) 1.5 x 10^-10 J (c) 1.5 x 10⁴ J (d) 1.5 x 10^-8 J
[1]
Q38.
Which following physical quantity has same unit as energy density? (a) Current density (b) Angular momentum (c) Pressure (d) Work
[1]
Q39.
Three capacitors of capacitances 2pF, 3pF and 4pF are connected in series. What is the equivalent capacitance of this combination? (a) 12/13 pF (b) 13 pF (c) 9 pF (d) 13/12 pF
[1]
Q40.
At __ distance electric potential due to a electric charge 4 x 10^-7 C will be 4 x 10⁴ V. (a) 9 m (b) 9 micro-m (c) 9 cm (d) 9 mm
[1]
Q41.
Equipotential at a great distance from a collection of charges whose total sum is not zero are approximately __. (a) ellipsoids (b) spheres (c) paraboloids (d) planes
[1]
Q42.
Use of wheatstone bridge is __. (a) to find unknown resistance (b) to find unknown current (c) to find unknown emf (d) all of above
[1]
Q43.
Metals have resistivities in the range of __. (a) 10⁸ Ohm-m to 10⁶ Ohm-m (b) 10^-8 Ohm-m to 10^-6 Ohm-m (c) 10^-8 Ohm-m to 10⁶ Ohm-m (d) 10²2 Ohm-m to 10²4 Ohm-m
[1]
Q44.
The storage battery of a car has an emf of 12V. If the internal resistance of the battery is 0.8 Ohm, what is the maximum current that can be drawn from the battery? (a) 15 A (b) 1.5 A (c) 0.15 A (d) 30 A
[1]
Page 5 of 10
Q45.
A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil? (a) 4 pi x 10^-4 T (b) pi x 10^-4 T (c) 4 pi x 10^-6 T (d) pi x 10^-6 T
[1]
Q46.
A solenoid of length 0.5 m has a radius of 1 cm and is made up of 1000 turns. It carries a current of 5A. What is the magnitude of the magnetic field inside the solenoid? (a) 3 pi x 10^-3 T (b) 2 pi x 10^-3 T (c) pi x 10^-3 T (d) 4 pi x 10^-3 T
[1]
Q47.
By increasing number of turns of coil in Galvanometer its current sensitivity __ and voltage sensitivity __. (a) decreases, decreases (b) decreases, remains constant (c) increases, increases (d) increases, remains constant
[1]
Q48.
Unit of Torsional constant is __. (a) N/m . rad (b) rad / J (c) J / rad (d) J . rad
[1]
Q49.
For a short Bar magnet, B-axial / B-equatorial = __. (a) 2 : 1 (b) 1 : 1 (c) 3 : 2 (d) 1 : 2
[1]
Q50.
Force exerted on a charge particle of a conducting wire of length l moving with velocity v (vector) in magnetic field B (vector) [perpendicular to B (vector)] is __. (a) F(vector) = q(E(vector) + v(vector).B(vector)) (b) F(vector) = q(E(vector) + v(vector) x B(vector)) (c) F(vector) = q(B(vector) + v(vector) x E(vector)) (d) F(vector) = q(v(vector) + E(vector) x B(vector))
[1]
Section B

Q1.
Two insulated charged copper spheres A and B have their centres separated by a distance of 50 cm. What is the mutual force of electrostatic repulsion if the charge on each is 6.5 x 10^-7 C? The radii of A and B are negligible compared to the distance of separation.
[2]
Q2.
Derive equation of Electric field due to a uniformly charged infinite plane sheet by using Gauss's Law.
[2]
Page 6 of 10
Q3.
Define Mobility. Write its unit. Derive equation for Mobility.
[2]
Q4.
Give two differences between Diamagnetic substance and paramagnetic substance.
[2]
Q5.
A circular coil of radius 10 cm, 500 turns and resistance 2 Ohm is placed with its plane perpendicular to the horizontal component of the earth's magnetic field. It is rotated about its vertical diameter through 180 degrees in 0.25 s. Estimate the magnitudes of the emf and current induced in the coil. Horizontal component of the earth's magnetic field at the place is 3.0 x 10^-5 T.
[2]
Q6.
Explain resonance for LCR series AC circuit derive equation for angular resonant frequency.
[2]
Q7.
Give the construction and uses of optical fibre.
[2]
Q8.
In a Young's double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1.4 m away. The distance between the central bright fringe and the fourth bright fringe is measured to be 1.2 cm. Determine the wavelength of light used in the experiment.
[2]
Q9.
Write any four characteristics of photon.
[2]
Q10.
In accordance with the Bohr's model, find the quantum number that characterises the earth's revolution around the sun in an orbit of radius 1.5 x 10¹1 m with orbital speed 3 x 10⁴ m/s. [mass of the earth = 6.0 x 10²4 kg]
[2]
Page 7 of 10
Q11.
Write a short note about Radioactivity.
[2]
Q12.
Suppose a pure Si crystal has 5 x 10²8 atoms m^-3. It is doped by 1 ppm concentration of pentavalent As. Calculate the number of electrons and holes. Given that nᵢ = 1.5 x 10¹6 m^-3.
[2]
Section C

Q1.
Derive equation for a potential energy of a dipole in an external electric field.
[3]
Q2.
A heating element using nichrome connected to a 230V supply draws an initial current of 3.2A which settles after a few seconds to a steady value of 2.8A. What is the steady temperature of the heating element if the room temperature is 27.0 degrees C? Temperature co-efficient of resistance of nichrome averaged over the temperature range involved is 1.70 x 10^-4 per degree C.
[3]
Q3.
Derive an equation for magnetic force on a current carrying conductor, F(vector) = I . l(vector) x B(vector).
[3]
Q4.
Define self inductance. On which factor does it depend? Derive equations for back emf and energy stored in circuit.
[3]
Q5.
What is transformer? Explain working procedure of transformer. For an ideal transformer prove that Ip/Is = Vs/Vp = Ns/Np.
[3]
Page 8 of 10
Q6.
Derive equation for effective focal length for combination of thin convex lenses in contact derive equation for net power.
[3]
Q7.
Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of (a) reflected and (b) refracted light? Refractive index of water is 1.33.
[3]
Q8.
Explain three physical processes for the emission of electron from the surface of a metal.
[3]
Q9.
Derive equation for total energy of an electron in Hydrogen atom.
[3]
Section D

Q1.
Explain effect of dielectric in case of parallel plate capacitor obtain formula for capacitance in presence of dielectric.
[4]
Q2.
State Ohm's law and obtain resistance R = rho . l / A. By using Ohm's law obtain the relation between current density (j vector) and electric field (E vector).
[4]
Page 9 of 10
Q3.
A sinusoidal voltage of peak value 283 V and frequency 50 Hz is applied to a series LCR circuit in which R = 3 Ohm, L = 25.48 mH and C = 796 microF. Find a) impedance of the circuit b) the phase difference between the voltage across the source and the current c) the power dissipated in the circuit d) the power factor
[4]
Q4.
A person with a normal near point (25 cm) using a compound microscope with objective of focal length 8.0 mm and an eyepiece of focal length 2.5 cm can bring an object placed at 9.0 mm from the objective in sharp focus. What is the separation between the two lenses? Calculate the magnifying power of the microscope.
[4]
Q5.
How long can an electric lamp of 100 W be kept glowing by fusion of 2.0 kg deuterium? Take the fusion reaction as H(1,2) + H(1,2) -> He(2,3) + n + 3.27 MeV
[4]
Q6.
Explain full wave rectification with the help of proper circuit diagram and draw the waveform of input AC and output voltage.
[4]
Page 10 of 10