Physics · Class 11 Science

Bihar Bseb Class 11 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.

2022–2026
Years of papers: 5
Total Papers: 5
Real Board Papers: 0
Sample papers: 413
Real-paper Q & A: 0
Sample-paper Q & A

Real board-paper questions available, by year

—2026Paper not available

96 Q2025complete

92 Q2024complete

—2023Paper not available

—2022Paper not available

—2021Paper not available

—2020Paper not available

—2019Paper not available

2026 — Paper not available: The Bihar Board (BSEB) held the Class-XI (Intermediate 1st Year) Annual Examination this year, but no verified question paper for this subject is available from the sources we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original, so we show none rather than an unconfirmed copy.

2023 — Paper not available: The Bihar Board (BSEB) held the Class-XI (Intermediate 1st Year) Annual Examination this year, but no verified question paper for this subject is available from the sources we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original, so we show none rather than an unconfirmed copy.

2022 — Paper not available: The Bihar Board (BSEB) held the Class-XI (Intermediate 1st Year) Annual Examination this year, but no verified question paper for this subject is available from the sources we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original, so we show none rather than an unconfirmed copy.

2021 — Paper not available: The Bihar Board (BSEB) held the Class-XI (Intermediate 1st Year) Annual Examination this year, but no verified question paper for this subject is available from the sources we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original, so we show none rather than an unconfirmed copy.

2020 — Paper not available: The Bihar Board (BSEB) held the Class-XI (Intermediate 1st Year) Annual Examination this year, but no verified question paper for this subject is available from the sources we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original, so we show none rather than an unconfirmed copy.

2019 — Paper not available: The Bihar Board (BSEB) held the Class-XI (Intermediate 1st Year) Annual Examination this year, but no verified question paper for this subject is available from the sources we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original, so we show none rather than an unconfirmed copy.

Bihar Board Intermediate 1st Year 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: 70
Questions: 48
Duration: 195 min
Sections: 3

The marks / questions / duration above are the official exam pattern. We currently have 96 of this paper’s questions (200% of the full paper), with 96 fully solved. Questions we couldn’t yet extract or verify are held — never shown as complete.

Sections & marks

Section	Type	Questions	Marks each	Total
Section A (Objective, Q1–70)Section Section A (Objective, Q1–70)	Objective (MCQ) — answer any 35 of 70, on OMR	35	1	35
Section B — Short AnswerSection Section B — Short Answer	Short answer — answer any 10 of 20	10	2	20
Section B — Long AnswerSection Section B — Long Answer	Long answer (internal choice) — answer any 3 of 6	3	5	15
Total		48		70

The question paper

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

Board Examination

Physics

Bihar Board Intermediate 1st Year 2026 · Set ANNUAL

Series/Set: ANNUALRoll No. ________

Time Allowed: 3 hr 15 minMaximum Marks: 70

General Instructions

This question paper contains 48 questions divided into 3 sections — Section A (Objective, Q1–70), Section B — Short Answer, Section B — Long Answer.
Section Section A (Objective, Q1–70) comprises 35 questions of 1 mark each (Objective (MCQ) — answer any 35 of 70, on OMR).
Section Section B — Short Answer comprises 10 questions of 2 marks each (Short answer — answer any 10 of 20).
Section Section B — Long Answer comprises 3 questions of 5 marks each (Long answer (internal choice) — answer any 3 of 6).

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

Section A

Q1.

Which of the following has dimensional formula [ML^2T^-2] ?

(a) Acceleration
(b) Force
(c) Work
(d) Linear momentum

[1]

Q2.

The numbers of significant digits in 0.0065 and 2.0065 are respectively

(a) 4, 5
(b) 2, 3
(c) 4, 3
(d) 2, 5

[1]

Q3.

The unit vector in the direction of vector A = √5 î + 2 ĵ is

(a) (1/9)(√5 î + 2 ĵ)
(b) (1/3)(√5 î + 2 ĵ)
(c) (1/9)(√5 î − 2 ĵ)
(d) none of these

[1]

Q4.

If P = 4 î − 5 ĵ and Q = 5 î + 4 ĵ, then the angle between the two vectors is

(a) 0
(b) π
(c) π/2
(d) π/4

[1]

Q5.

The value of acceleration at the highest point of the projectile path is

(a) zero
(b) maximum
(c) minimum
(d) equal to g

[1]

Q6.

Which of the following is a derived unit ?

(a) ampere
(b) mole
(c) kelvin
(d) joule

[1]

Q7.

If the angle between two vectors is 90°, then their dot product will be

(a) 0
(b) 1
(c) − 1
(d) ∞

[1]

Page 1 of 12

Q8.

Which of the following is not a vector quantity ? (a) Velocity (b) Displacement (c) Speed (d) Impulse

[1]

Q9.

If the acceleration of a body moving from rest is 2 m/s², then the distance travelled by the body in 10 sec will be (a) 10 m (b) 50 m (c) 100 m (d) 20 m

[1]

Q10.

If an object is thrown vertically upward, then at the highest point its velocity will be (a) maximum (b) same as initial velocity (c) zero (d) none of these

[1]

Q11.

If vector A = Ax î + Ay ĵ makes an angle θ with the x-axis, then (a) |A| = Ax² + Ay² and θ = sin^-1(Ax/Ay) (b) |A| = √(Ax² + Ay²) and θ = cos^-1(Ay) (c) |A| = √(Ax² + Ay²) and θ = tan^-1(Ax/Ay) (d) |A| = √(Ax² + Ay²) and θ = tan^-1(Ay/Ax)

[1]

Q12.

For which of the following position-time (x-t) graphs acceleration is zero ? (a) concave-upward (U-shaped) x-t curve (b) dome-shaped (concave-downward) x-t curve (c) straight line rising with time (d) oscillating wave-like x-t curve

[1]

Q13.

The area under the velocity-time (v-t) graph of a moving body represents (a) velocity of the body (b) acceleration of the body (c) kinetic energy of the body (d) displacement of the body

[1]

Q14.

The direction of force is always (a) along the velocity (b) opposite to the velocity (c) perpendicular to the velocity (d) parallel to the acceleration

[1]

Q15.

If the speed of a body moving in uniform circular motion is doubled, then the centripetal force acting on the body on a circular path of the same radius will be (a) double (b) quadruple (c) half (d) same as before

[1]

Q16.

An object is in perfect balance on an inclined plane. If the coefficient of friction is μ, then the maximum inclination angle of the inclined plane with the horizontal will be (a) sin^-1(μ) (b) cos^-1(μ) (c) cot^-1(μ) (d) tan^-1(μ)

[1]

Q17.

A body which is initially at rest, undergoes one-dimensional motion with constant acceleration. The power delivered to it at time t is proportional to (a) t² (b) t (c) t³/2 (d) t¹/2

[1]

Page 2 of 12

Q18.

Two springs A and B with spring constants respectively k1 and k2 are stretched to the same length. The ratio of potential energies stored (UA/UB) in them will be (a) (k1/k2)² (b) 2k1/k2 (c) 2k2/k1 (d) k1/k2

[1]

Q19.

Which of the following is not a conservative force ? (a) Frictional force (b) Electrostatic force (c) Gravitational force (d) Spring force

[1]

Q20.

Kinetic energy of a body of mass 2 kg is 36 joule. Its momentum in kg m/s will be (a) 6 (b) 12 (c) 24 (d) 36

[1]

Q21.

Kilowatt-hour (kWh) is the unit of (a) power (b) momentum (c) energy (d) electric current

[1]

Q22.

If a uniform rod has length l, then its centre of mass will be located at (a) l/2 (b) 3l/4 (c) l/3 (d) none of these

[1]

Q23.

The moment of inertia of a circular disc of mass M and radius R about its diameter is (a) MR² (b) MR²/4 (c) 3MR²/4 (d) MR²/2

[1]

Q24.

If the centre of gravity of a body coincides with its centre of mass, then the gravitational fields acting on different parts of the body are (a) zero (b) equal (c) different (d) none of these

[1]

Q25.

While studying motion of an object under the gravitational effect of another object which of the following quantities is not conserved ? (a) Linear momentum (b) Angular momentum (c) Total mechanical energy (d) None of these

[1]

Q26.

If the mass of a body is M and moment of inertia about an axis is I, then the radius of gyration about that axis is (a) MI² (b) I²/M (c) √(I/M) (d) √(M/I)

[1]

Q27.

Relation between orbital velocity (Vo) of a satellite revolving near the earth and escape velocity (Ve) of a body from the earth's surface is (a) Ve = √2 Vo (b) Vo = √2 Ve (c) Ve = √(Vo/2) (d) Vo = √(Ve/2)

[1]

Page 3 of 12

Q28.

The dimensional formula of the universal gravitational constant is (a) [M^-1 L³ T²] (b) [M^-1 L³ T^-1] (c) [M^-1 L³ T^-2] (d) [ML² T^-3]

[1]

Q29.

The motion of a particle under the central force is always confined to a plane. This is a consequence of (a) conservation of linear momentum (b) conservation of angular momentum (c) conservation of energy (d) none of these

[1]

Q30.

A particle moves under the effect of a force F = αx from x = 0 to x = d. The work done in the process is (α = constant) (a) αd (b) αd² (c) (1/2)αd² (d) zero

[1]

Q31.

For constant momentum (p), the correct graph between kinetic energy (E) and mass (m) will be (a) decreasing hyperbola-like E-m curve (b) straight line increasing with mass (c) upward-increasing E-m curve (d) none of these

[1]

Q32.

Two artificial satellites A and B are revolving around a planet in circular orbits of radii 9R and R respectively. If speed of A is 2v, then the speed of B will be (a) 2v (b) 4v (c) 6v (d) 9v

[1]

Q33.

The unit of Young's modulus of elasticity is (a) N/m² (b) N-m² (c) joule (J) (d) unitless

[1]

Q34.

The reciprocal of the bulk modulus is called as (a) Young's modulus (b) Compressibility (c) Shear modulus (d) Elastic limit

[1]

Q35.

The Young's modulus of a perfectly rigid body is (a) zero (b) 1 (c) infinite (d) between zero and one

[1]

Q36.

A particle executes simple harmonic motion with a time period of 6 second and amplitude of 3 cm. Its maximum speed in cm/sec will be (a) 3π (b) 2π (c) π (d) π/2

[1]

Q37.

The dimensions of the coefficient of viscosity are (a) [MLT^-1] (b) [ML²T^-2] (c) [M^-1LT^-1] (d) [ML^-1T^-1]

[1]

Page 4 of 12

Q38.

The radii of two soap bubbles are in the ratio of 2 : 1. The ratio of excess pressure inside them is (a) 1 : 4 (b) 4 : 1 (c) 2 : 1 (d) 1 : 2

[1]

Q39.

If the radius of a small spherical body is doubled, then the value of terminal velocity will be (a) double (b) four times (c) eight times (d) constant

[1]

Q40.

Elastic potential energy in a stretched wire is (a) 1/2 × stress × strain (b) 1/2 × stress × strain² (c) 1/2 × stress × strain × volume of the wire (d) 1/2 × stress × strain² × volume of the wire

[1]

Q41.

If the radius of a narrow tube is doubled, then what will be the effect on capillary rise ? (a) Doubles (b) Halves (c) Becomes four times (d) No effect

[1]

Q42.

A ball of mass 2 kg moving with a speed of 10 m/s collides elastically with another ball of mass 3 kg at rest. What will be the speed of the 3 kg ball after collision ? (a) 0 m/s (b) 2 m/s (c) − 2 m/s (d) 8 m/s

[1]

Q43.

One atmosphere pressure (1 atm) is equal to (a) 1 pascal (b) 1 torr (c) 1.013 bar (d) 1.013 pascal

[1]

Q44.

The contact angle between pure water and clean glass is (a) 0° (b) 8° (c) 45° (d) 90°

[1]

Q45.

Pressure on a swimmer at a depth of 10 m below the surface of a lake will be (density of water = 1000 kg/m³, g = 10 m/s²) (a) 1 atm (b) 2 atm (c) 3 atm (d) 0.5 atm

[1]

Q46.

Viscous force (a) is a non-conservative force (b) depends on the velocity (c) acts opposite to the fluid flow (d) all of these

[1]

Q47.

When water freezes, the distance between its molecules (a) Decreases (b) Increases (c) Becomes zero (d) Remains unchanged

[1]

Page 5 of 12

Q48.

Which statement is true ? (a) Amplitude ∝ Intensity (b) Intensity ∝ (Amplitude)² (c) Intensity ∝ 1/Amplitude (d) None of these

[1]

Q49.

The relation between the coefficient of volume expansion (αv) and the coefficient of linear expansion (αl) is (a) αl = 3αv (b) αl = αv/3 (c) αl = αv (d) αl = 3/αv

[1]

Q50.

SI unit of specific heat capacity is (a) J kg K^-1 (b) J kg^-1 K^-1 (c) J kg^-1 K^-2 (d) J mol^-1 K^-1

[1]

Q51.

A metal sheet with a circular hole is heated. The hole (a) gets smaller (b) gets larger (c) remains unchanged (d) gets deformed

[1]

Q52.

The average kinetic energy of a molecule of an ideal gas depends on the (a) nature of the gas (b) pressure (c) volume (d) temperature

[1]

Q53.

The temperature at which Celsius temperature and Fahrenheit temperature are equal, is (a) 0° (b) 40° (c) − 40° (d) − 32°

[1]

Q54.

The ratio of Cp and Cv for helium gas is (a) 5/3 (b) 5/7 (c) 3/5 (d) 9/7

[1]

Q55.

The potential energy of an ideal gas is (a) (3/2)kB T (b) (2/3)kB T (c) zero (d) 3kB T

[1]

Q56.

The relation between pressure (P) and volume (V) of an ideal gas in an adiabatic process is (where γ = Cp/Cv) (a) (PV)^γ = constant (b) P^γ V = constant (c) PV = constant (d) PV^γ = constant

[1]

Q57.

If the hot reservoir temperature of a Carnot engine is 800 K and the efficiency is 25%, then the temperature of cold reservoir will be (a) − 173.15°C (b) − 73.15°C (c) 26.85°C (d) 126.85°C

[1]

Page 6 of 12

Q58.

The change in internal energy (ΔU) of an ideal gas in a cyclic process is (a) equal to the heat absorbed (b) equal to the work done (c) (3/2)kB T (d) zero

[1]

Q59.

The path difference between the two waves y1 = a1 sin(ωt − 2πx/λ) and y2 = a2 cos(ωt − 2πx/λ + φ) is (a) (2π/λ)φ (b) (λ/2π)φ (c) (2π/λ)(φ + π/2) (d) (λ/2π)(φ + π/2)

[1]

Q60.

The mean square speed of the molecules of a gas at absolute temperature T is proportional to (a) √T (b) T (c) T² (d) 1/T

[1]

Q61.

Which of the following is an extensive variable of a thermodynamic system ? (a) Pressure (b) Temperature (c) Density (d) Volume

[1]

Q62.

The work done by a gas in an isochoric process is (a) equal to the product of pressure and volume (b) zero (c) both (A) and (B) (d) none of these

[1]

Q63.

The displacement of a particle moving in simple harmonic motion (SHM) at any instant is given by y = a cosωt. The acceleration after time t = T/4 (where T is time period) is (a) 0 (b) − aω² (c) aω² (d) − aω

[1]

Q64.

A wave is reflected from a rigid support. The change in phase on reflection will be (a) π/2 (b) π (c) no change (d) π/4

[1]

Q65.

The potential energy of a particle executing simple harmonic motion at a distance x from the mean position is proportional to (a) x (b) √x (c) x² (d) x³

[1]

Q66.

In case of resonance, amplitude of oscillations is (a) zero (b) minimum (c) maximum (d) none of these

[1]

Q67.

When sound wave is refracted from air to water, which of the following will remain unchanged ? (a) Wavelength (b) Velocity (c) Frequency (d) Angular wave number

[1]

Page 7 of 12

Q68.

A simple harmonic oscillator has an amplitude a and time period T. The time required by it to travel from x = a to x = a/2 is (a) T/2 (b) T/4 (c) T/3 (d) T/6

[1]

Q69.

The frequency of the note emanating from an organ pipe depends on (a) length of the air column (b) the speed of sound in air (c) both (A) and (B) (d) none of these

[1]

Q70.

On increasing the temperature of air by 1°C, velocity of sound in it increases by (a) 0.331 m/s (b) 0.273 m/s (c) 0.232 m/s (d) 0.607 m/s

[1]

Section B

Q1.

What is the triangle law of vector addition ?

[2]

Q2.

The velocity of a particle is expressed by the equation v = At² + B/t, where t is time. Find the dimensional formulae of A and B.

[2]

Q3.

If a ball is thrown vertically upwards with speed u, then find the distance covered during the last t second of its ascent.

[2]

Q4.

The position vector of a particle is given by R = (3t î − 2t² ĵ) m. Time is expressed in t second and the units of all the factors are in such a way that R can be expressed in metres. Find the magnitude of the velocity of the particle at t = 1 s.

[2]

Q5.

Write Newton's first law of motion.

[2]

Page 8 of 12

Q6.

What is the principle of conservation of linear momentum ?

[2]

Q7.

Define power and write its SI unit.

[2]

Q8.

What is pseudo force ? Why is centrifugal force called pseudo force ?

[2]

Q9.

The average distance of a planet from the sun is 9 times more than the average distance of the earth from the sun. In how many years will the planet complete one revolution around the sun ?

[2]

Q10.

Find the torque of a force F = î + 2 ĵ − 3 k̂ about the origin. The force acts on a particle whose position vector is 2 î + 4 ĵ − 6 k̂.

[2]

Q11.

When a uniform cube is compressed, then each of its sides decreases by 1%. Calculate its volume strain.

[2]

Q12.

The diameter of a pipe is 3 cm, through which water is flowing at a speed of 5 m/s. If the diameter of the pipe is halved, then find the speed of flow of water in it.

[2]

Q13.

What is surface energy of a liquid ?

[2]

Page 9 of 12

Q14.

What is Doppler effect ?

[2]

Q15.

Draw the graph showing the variation of gravitational potential of a uniform hollow sphere with distance from its centre.

[2]

Q16.

Two small spherical bodies are dropped in a liquid whose radii are in the ratio of 3 : 4. If the viscous drag force applied on both the bodies is same, then find the ratio of their velocities.

[2]

Q17.

Draw P-V curves for isothermal, adiabatic, isobaric and isochoric processes of an ideal gas.

[2]

Q18.

What is the time period of second pendulum ? Calculate its length.

[2]

Q19.

Find the ratio of the speed of sound in oxygen (O2) and hydrogen (H2) gases at the same temperature.

[2]

Q20.

Write the mathematical formula for the mean free path of gas molecules and explain the meaning of the symbols used.

[2]

Page 10 of 12

Section C

Q1.

A constant retarding force of 50 N is applied to a body of mass 10 kg moving initially with a speed of 20 m/s. How long does the body take to stop ?

[5]

Q2.

The second law of thermodynamics disallows many phenomena consistent with the first law of thermodynamics. Discuss this statement in detail with suitable examples.

[5]

Q3.

What do you mean by potential energy, kinetic energy and total mechanical energy of a particle performing simple harmonic motion ? Draw the graph of kinetic energy, potential energy and total energy as functions of time. What will be the effect on total mechanical energy for motions under non-conservative forces ? Write your thoughts on it.

[5]

Q4.

Write and explain the theorems of parallel and perpendicular axes related to moment of inertia for rigid bodies.

[5]

Page 11 of 12

Q5.

Write the work-energy theorem. A body of mass m dropped from a height h reaches the ground with a velocity of 0.8√(gh). Using the work-energy theorem, show that work done by the air-friction is − 0.68 mgh.

[5]

Q6.

What do you mean by stationary waves ? Explain the difference between stationary and progressive waves.

[5]

Page 12 of 12