JEE Mains 2025 28 Jan Shift 1 & 2 Paper Solutions, Download Free PDF

The National Testing Agency has started the Day 4 of the JEE Mains 2025 Session 1 Examination. As per the schedule, shift 1 is over at 12 at 9:00 P.M. and ends at 12:00 P.M. whereas Shift 2 will take place from 03:00 to 06:00 P.M.

As per the JEE Mains 2025 28 Jan shift 1 Paper analysis, candidates claim that this is the hardest shift thus far as both the Maths and Physics sections are at a harder side. Check the complete analysis of JEE Mains 2025 28 January Shift 1 Paper below.

As the engineering entrance exam is conducted in CBT mode, students are keenly looking for the JEE Mains 2025 28 Jan Shift 1 & 2 Paper Solutions on the Internet. For convenience, we have shared the memory-based JEE Mains 2025 28 Jan Shift 1 Paper Solutions and EE Mains 2025 28 January Shift 1 Paper Solutions on this page, after the conclusion of the exam.

JEE Mains 2025 28 Jan Shift 1 & 2 Paper Solutions

The fourth day of the JEE Main Session 1 exam is underway on January 28, 2025, across 300 places in India and 15 abroad.  Today Paper 1 (B.Tech) is scheduled to take place in both shifts. JEE Mains B.Tech Question Paper has an aggregate weightage of 300 marks and 75 questions from physics, chemistry, and Maths.

After the conclusion of both shifts, our specialists provide memory-based JEE Mains Question Paper 2025 Solutions for January 28 shifts 1 & 2 to help candidates forecast their performance. It is highly recommended students go through these question papers whose exam is scheduled for upcoming shifts and sessions.

JEE mains 28 January Question Paper with Solutions PDF Download

Just after the conclusion of each shift, our in-house experts will start evaluating Today’s JEE Main shift 1 & 2 question paper solutions. We will share the Free PDF for memory-based JEE Mains 2025 28 Jan Shift 1 Paper Solutions and EE Mains 2025 28 January Shift 2 Paper Solutions in the table below soon.

JEE Mains 2025 28 Jan Shift 1 Paper Solutions

The JEE Main 2025 28 January Shift 1 Paper is now over at 12:00 P.M. We will share the Today JEE Mains shift 1 question paper solutions as soon as possible here under.

Today JEE mains Shift 1 Physics Question Paper

Q. A ring and a solid sphere have the same mass M. The radius of the ring is R, and the radius of the solid sphere is R1, such that R = 2R1. What is the ratio of the moment of inertia of the ring to the moment of inertia of the solid sphere about their respective axes of symmetry?
(A) 5/2
(B) 2/5
(C) 4/5
(D) 5/4
Correct Answer: (A) 5/2

Q. Number of ways to form 5 digit numbers greater than 50000 with the use of digits 0, 1, 2, 3, 4, 5, 6, 7 such that sum of first and last digit is not more than 8, is equal to
A: 4607
Q. A uniform wire of linear charge density A is placed along y-axis. The locus of equipotential surface is
A: x2 + y2 = constant

Today JEE mains Shift 1 Chemistry Question Paper

Q. A fluid with density ρ = 1000 kg/m3 and dynamic viscosity µ = 0.001 Pa·s flows through a pipe of diameter D = 0.02 m with a velocity v = 2 m/s. What is the Reynolds number for this flow, and what type of flow does it represent?
(A) 40, 000, Turbulent flow
(B) 20, 000, Transitional flow
(C) 40, 000, Laminar flow
(D) 20, 000, Turbulent flow
A: (A) 40, 000, Turbulent flow.

Q. In the electrolysis of aqueous copper(II) sulfate (CuSO4) using platinum electrodes, which of the following statements is correct?
(A) Oxygen gas is evolved at the anode, and copper is deposited at the cathode.
(B) Hydrogen gas is evolved at the cathode, and oxygen gas is evolved at the anode.
(C) Copper is deposited at the anode, and oxygen gas is evolved at the cathode.
(D) Sulfur dioxide gas is evolved at the anode, and copper is deposited at the cathode.

A: (A) Oxygen gas is evolved at the anode, and copper is deposited at the
cathode.

Q. Consider the following elements In, Ti, Al, and Pb. The most stable oxidation states
of these elements with the highest and lowest first ionisation enthalpies, respectively,
are:
(A) +4 and +1
(B) +2 and +3
(C) +4 and +3
(D) +1 and +4
A: (A) +4 and +1

Q. The molecules having square pyramidal geometry are:
(A) SbF PCI
(B) BrF XeOF
(C) BrF PCI
(D) SbF XeF
A: (B) BrF XeOF.

Q. The incorrect decreasing order of atomic radii is:
(A) Si >P >Cl >F
(B) Mg >Al >C >O
(C) Al >B >N >F
(D) Be >Mg >Al >Si
A: (D) Be >Mg >Al >Si.

Today JEE mains Shift 1 Maths Question Paper

Q. Find the area of the region
(x, y) : 0 ≤ y ≤ 2|x| + 1, 0 ≤ y ≤ x² + 1, |x| ≤ 3

Q. The relation R = {(x, y) | x, y ∈ Z, x + y is even}, then R is:
(A) Equivalence
(B) Reflexive Transitive but not Symmetric
(C) Symmetric Transitive but not Reflexive
(D) Reflexive Symmetric but not Transitive
Correct Answer: (C) Symmetric Transitive but not Reflexive.

Q. If π/2 ∫ -π/2[ 96(x 2 + cosx)/(1 + e x) ] dx= απ 3 + β (where α, β are positive integers), then find the value of α + β.
Answer: 100

Q. Number of ways to form 5 digit numbers greater than 50000 with the use of digits 0, 1, 2, 3, 4, 5, 6, 7 such that sum of first and last digit is not more than 8, is equal to
Answer: 5119

Q. If the image of the point P(4, 4, 3) in the line (x – 1)/2 = (y – 2)/1 = (z – 1)/1 is Q (α, β, γ), then find the value of (α+ β + γ).
Answer; 31/3

Q. Let R be a relation such that R = {(x, y): x, y ∈ Z and (x + y) is even), then the relation R is
Answer: Equivalence Relation

Q. cos(sin -1 (3/5) + sin -1 (5/13) + sin -1(33/65)) = ?

Answer: 0

JEE Main 28 January Shift 1 Paper Analysis

We shared the complete Today JEE Mains 2025 28 January Shift 1 Paper analysis given by students and experts below. As per the student’s initial reaction, students who appeared in today’s Shift exam rated the paper as tough in difficulty level overall. Maths were lengthy and difficult. Physics was difficult whereas questions were extremely lengthy, and no direct questions were asked whereas Chemistry was easy to moderate and based on the NCERT curriculum.

• In Maths, Questions come from disciplines such as vector and 3D geometry, special sequences, area under the curve, differential equations, matrices, probability, and conic sections.
•  Chemistry questions were based on themes such as salt, the periodic table, and ionization energy comparison. The majority of questions were inorganic, with the fewest being organic.
• In Physics, many questions originated from themes like: rotation, moment of inertia, modern physics, resistance, semiconductors, fluid mechanics, potential., Resistance, Semiconductor, Fluid Mechanics, Potential, Cector, Electricity, Carnot Engine.

JEE Mains 2025 28 Jan Shift 2 Paper Solutions

The JEE Mains January 28 Shift 2 examination takes place from 3:00 to 6:00 p.m. Once the exam is now concluded, we will release the complete JEE Mains shift 2 question paper solutions and analysis below. It should be noted that the JEE Mains question papers shared on this page are completely memory-based papers and based on the student’s input. Stay tuned with us for the JEE main 28 January Question paper analysis Live updates,

JEE Mains 28 Jan Shift 2 Paper Analysis

After the exam we will share the JEE Mains 28 January shift 2 Question paper solutions on this page.

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