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Download here the memory-based JEE Main 23 January 2025 Physics question paper with answer key solutions for both Shift 1 and Shift 2. Physics question paper PDF by top coaching institutes can also be downloaded here.
JEE Main 23 January 2025 Physics Question Paper with Answer Key SolutionsJEE Main 23 January 2025 Physics Question Paper: Candidates who appeared for JEE Main 2025 Physics exam on January 23, 2025 and appearing for the exam on January 24, 28 and 30 can access the memory-based question paper with answer key solutions for Shift 1 and Shift 2. Since the Session 1 examination is being conducted in computer-based test mode, no official question paper will be available. Our experts have provided JEE Main 23 January 2025 Physics memory-based questions which is essential for students to assess their performance and develop strategies for future attempts. Additionally, aspirants can find Physics question paper PDFs by top coaching institutes offering them a comprehensive analysis of expert insights into the solutions.
| Toughest Shift of JEE Main January 2025 (Session 1) | Easiest Shift of JEE Main January 2025 (Session 1) |
|---|
JEE Main 23 January 2025 Physics Shift 1 Question Paper with Answer Key Solutions
Students can check the question paper with answer key solutions for JEE Main 23 January 2025 Physics Shift 1 exam here.
| Q.No. | Questions | Answers |
|---|---|---|
| 1 | Electric flux ϕ is related with linear charge density λ and surface charge density σ as ϕ = αλ + βσ, where α and β are of appropriate dimensions of (β/α) is | Displacement |
| 2 |
For the given velocity-time (v-t) graph, find distance travelled at 0.5 sec.
 | 112.5 m |
| 3 | The displacement of a particle as function of time is x(t) = A sin(t) + B cos 2 (t) + ct 2 + D. Find the Dimension of [ABC/D]. | L 2 T -2 |
| 4 | The ratio of electric force to gravitational force between two particles having charges q 1 , q 2 and masses m 1 and m 2 respectively is |  |
| 5 |
Statement-l: Hot water is less viscous than cold water.
Statement-ll: Surface tension of soap bubble is more than that of a drop of water. | Statement 1 is true and Statement 2 is false |
| 6 |
Match the Column appropriately regarding thermodynamic process.
(P) When volume change is zero - (i) ΔW = 0 (Q) When Pressure is constant - (ii) ΔQ = 0 (R) When no heat is exchanged - (iii) Isobaric (S) Work done by the gas is equal to heat given to the gas - (iv) Isothermal | P(i), Q(iii), R(ii), S(iv) |
| 7 |
In given DC circuit, find the current for R = 12 Ω in a steady state.
 | 1 A |
| 8 |
The key shown in the circuit is closed at t = 0. Choose the incorrect option regarding the conditions at t = 0.
 | Current in the circuit is zero. |
| 9 | Self-inductance depends on ______. | Geometry and Medium property |
| 10 | Solid sphere of mass m sells drawn from rest and achiever speed V 1 on an inclined plane of 30° sphere achiever speed V 2 in case of pure rolling on an inclined plane of 45° when released from same height. Then the ratio V 1 /V 2 is (Assume pure rolling) | 1 |
| 11 |
Find the equation of magnetic field for the given equation of electric field (for EM wave).
E = E 0 (4î– 3ĵ) cos(ωt - kz) |  |
| 12 |
For the circuit shown below
 (A) Current in ammeter is 2 A (B) Net resistance is 8 Ω (C) Voltage across BC is 4 V (D) Current through diode is 1 A Choose the correct option. | Only A, C, D are correct. |
| 13 |
Find the time period of a cube of side length 10 cm and mass 10 g oscillating in water.
(Density of water = 10 3 kg/m 3 and g = 10 m/s 2 ) | π/50 second |
| 14 | Adiabatic constant of a gas is 3/2. If volume of gas initially at 0°C is reduced to one-fourth of the original volume then new temperature is | 546 K |
| 15 |
From a uniform circular disc of radius 20 cm a circular portion of radius 5 cm is removed. The shift in the position of centre of mass (in cm).
 | 1 cm |
| 16 | A bullet of kinetic energy of 125 J strikes a lead block where temperature rises by 50°C. If specific heat of lead is 0.1 J/g-°C then mass of lead block is (Assume half of kinetic energy of bullet is converted to heat) m gram then 2 m is | 25 |
| 17 | Two objects are equal distances from sphere of radius R and refractive index μ such that the image of one object forms on other object. Find the object distance from the surface of sphere. | R/μ-1 |
| 18 | There is force field F → = x 3 yî + y 2 î in which a particle moves along the line x = y. Find work done by the force as the particle moves from (0, 0) to (2, 2). | 136/15 |
| 19 |
In a radioactive decay, decay constant of element A
2
is 3 times that of element A
1
. Find the ratio of nuclei of element 1 to element 2 after one half life of A
2
.
(Assume initial number of nuclei the same for both elements) | 2 2/3 |
Also Read | JEE Main 23 Jan 2025 vs 29 Jan 2024 Shift Analysis: Hardest vs Easiest
JEE Main 23 January 2025 Physics Shift 2 Question Paper with Answer Key Solutions
Find Day 2 Shift 2 JEE Main 23 January 2025 Physics question paper with answer key solutions and review your Session 1 performance.
| Q.No. | Questions | Answers |
|---|---|---|
| 1 |
Find the total work done from A to E.
 | -3P 0 V 0 |
| 2 |
Statement 1:
Graph of frequency f of X ray and atomic number Z of heavy nucleus is straight line, in X ray emission.
Statement 2: Graph of square root of frequency √f of X ray and atomic number Z of heavy nucleus is straight line, in X ray emission. | Statement 1 incorrect and Statement 2 is correct. |
| 3 | In a series LCR circuit, inductance L = 100 mH and capacitance C = 10 nF. The angular frequency of the source when current has maximum amplitude in the circuit is | 10 5 rad/s |
| 4 | A satellite is nine times closer to earth compared to moon. Time period of moon is 27 days then period of satellite is | 1 Day |
| 5 | Two charges +7 C and -4 C are located at (-7, 0, 0) and (7, 0, 0), find the electrostatic potential energy of the system. (K = 1/4πε 0 = 9 × 10 9 Sl units) | -18 * 10 9 J |
| 6 |
Two ideal diodes are connected in circuit as shown. Find current through battery.
 | 0.5 A |
| 7 | In an electromagnetic wave of frequency 20 MHz, value of electric field is 9.3 V/m, then magnitude of magnetic field at that instant is | 3.1 * 10 -8 |
| 8 | A particle of mass m is projected at angle 60° with horizontal. If initial kinetic energy is Kε 0 , and kinetic energy at maximum height is Kε 0 /x find value of x. | x = 4 |
| 9 | The energy in a system varies with position and time as E(x,t) = x 3 e -ßt , where ẞ = 0.3 sec -1 . Given that the P% error in x = 1.2% and that the % error in t = 1.6%, find the maximum % error in E at t = 5 sec. | 6% |
| 10 | A concave mirror of focal length f dipped into a flued of refractive index μ. The new focal-length mirror is | f |
| 11 |
Match the correct dimensions-
(a) Magnetic Field - (i) ML 2 (b) Permittivity of free space - (ii) M -1 L -3 T 4 A 2 (c) Moment of Inertia - (iii) MT -2 A -1 (d) Velocity - (iv) LT -1 | (a)→(iii), (b)→(ii), (c)→(i), (d)→(iv) |
| 12 | The temperature of a body of mass m and specific heat capacity s is raised slowly from T 1 to T 2 . The change is entropy of the system is | ms ln(T 2 /T 1 ) |
| 13 | A moving coil galvanometer with coil resistance G = 30 Ω, shows full-scale deflection when the current through it is 20 mA. The galvanometer is converted to an ammeter of range 3 A by using a shunt, then resistance S is | 0.2 Ω |
| 14 | Torque on a uniform disk of mass 2 kg, radius 1 m is given as ????(t) = 5t 2 - 8t. If the disk was initially at rest, find power by torque at t = 1 s. | 7 W |
| 15 | During charging of capacitor of 2.5 mF in DC circuit, the displacement current is found to be 0.25 mA then find rate of change of voltage V w.r.t. time dV/dt. | 100 V/s |
| 16 | In a photoelectric experiment, the stopping potential of 2 V, the work function of metal is 2.14 eV. Find the wavelength of incident light (given hc = 1242 eV-nm) | 300 nm |
| 17 | The equation of wave travelling in a medium is given by y(x, t) = 4.0 sin(20 × 10 -3 x + 600t) mm. The velocity of wave is n x 10 4 m/s. Find n. | 3 |
| 18 |
Find the charge on the capacitor (in µF) at steady state.
 | 16 mC |
| 19 | For a prism, the minimum deviation is equal to the angle of prism. If the refractive index is √3, find the minimum deviation (in degrees) | 60 O |
| 20 | A satellite of mass m is moving in circular orbit at a height R from surface of Earth (mass M, radius R). If the angular momentum of the satellite is m√NGMR, find N. | N = 2 |
Also Read| Expected Important Topics for JEE Main 24 January 2025
JEE Main 23 January 2025 Physics Question Paper PDF Download
Our CollegeDekho experts have provided the JEE Main 23 Jan 2025 Physics question paper and answer key solutions for both shifts in the form of PDFs below.
Shift | Physics Question Paper with Answers Links |
|---|---|
Shift 1 | |
Shift 2 |
JEE Main 23 January 2025 Question Paper: Chemistry and Mathematics
Test takers along with Physics can download JEE Main 23 January 2025 question papers for Chemistry and Mathematics for both shifts below.
Parameter | Question Paper Link |
|---|---|
Chemistry | JEE Main 23 January 2025 Chemistry Question Paper with Answer Key Solutions |
Mathematics | JEE Main 23 January 2025 Mathematics Question Paper with Answer Key Solutions |
JEE Main 23 January 2025 Physics Question Paper PDFs by Coaching Institutions
Resonance, Aakash BYJUs, and Vedantu have released the JEE Main 23 January 2025 Physics solution key and question paper PDF links for Shifts 1 and 2 in the table below:
Coaching Institute | Shifts | Physics Question Paper with Answer Key PDFs |
|---|---|---|
Resonance | Shift 1 | Resonance JEE Main Physics Question Paper and Answer Key 2025 January 23 Shift 1 |
Shift 2 | Resonance JEE Main Physics Question Paper and Answer Key 2025 January 23 Shift 2 | |
Vedantu | Shift 1 | Vedantu JEE Main Physics Question Paper and Answer Key 2025 January 23 Shift 1 |
Shift 2 | Vedantu JEE Main Physics Question Paper and Answer Key 2025 January 23 Shift 2 | |
Aakash | Shift 1 | Aakash JEE Main Physics Question Paper and Answer Key 2025 January 23 Shift 1 |
Shift 2 | Aakash JEE Main Physics Question Paper and Answer Key 2025 January 23 Shift 2 |
You may also find important |
Parameter | Link |
|---|---|
| Safe Score | Expected Safe Score in JEE Mains January 2025 |
| Safe Percentile | Expected Safe Percentile in JEE Main 2025 Session 1 |
Question Paper (All Days) | |
Answer Key (All Days) | |
Exam Analysis (All Days) | |
JEE Main Percentile to Marks | |
Marks to Percentile | |
Cutoff Percentile | |
| Cutoff Marks | Minimum Marks in JEE Mains to Qualify for JEE Advanced 2025 |
Subject-wise JEE Mains Marks vs Percentile 2025 |
Name of the Subject | Link |
|---|---|
Physics | |
Chemistry | |
| Mathematics | JEE Main Mathematics Expected Marks vs Percentile 2025 |
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