JEE Main Session-1 Exam 2025 : 29 January Shift-2 Analysis, Review & Question Paper with Answer Key

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JEE Main 2025 January 29 Shift 2 exam is over now. JEE Main 2025 January 29 Shift 2 student feedback and analysis is updated here. Additionally, memory-based unofficial JEE Main 2025 answer key and question paper with solutions for January 29 exam is also uploaded.

Candidates can check the responses of JEE Main January 29, 2025 Shift 2 students, difficulty level of questions, paper analysis, memory-based question paper with answer key and solutions, etc.

Candidates will have to show their JEE Main 2025 Session 1 admit card to enter the JEE Main 2025 exam centre for the shift 2 exam. Additionally, candidates will have to bring a government-issued photo identity card and a passport-sized photograph. Proper adherence to these entry requirements is necessary to attend the exam.

Paper 1 for BE/BTech candidates in JEE Main 2025 will be held on January 22, 23, 24, 28 and 29. Paper 2A and 2B for BArch and BPlan candidates are scheduled on January 30, 2025 from 3:00 PM to 6:30 PM.

👉 JEE Mains 2025 (29 January Shift-2 Physics) Question Paper and Answer Key (Available)

👉 JEE Mains 2025 (29 January Shift-2 Chemistry) Question Paper and Answer Key (Available)

👉 JEE Mains 2025 (29 January Shift-2 Mathematics) Question Paper and Answer Key (Available)

JEE Main Session 1 Memory Based Paper 2025

Exam Dates	Physics	Chemistry	Maths
22 January 2025	Shift - 1	Shift - 1	Shift - 1
22 January 2025	Shift - 2	Shift - 2	Shift - 2
23 January 2025	Shift - 1	Shift - 1	Shift - 1
23 January 2025	Shift - 2	Shift - 2	Shift - 2
24 January 2025	Shift - 1	Shift - 1	Shift - 1
24 January 2025	Shift - 2	Shift - 2	Shift - 2
28 January 2025	Shift - 1	Shift - 1	Shift - 1
28 January 2025	Shift - 2	Shift - 2	Shift - 2
29 January 2025	Shift - 1	Shift - 1	Shift - 1
29 January 2025	Shift - 2	Shift - 2	Shift - 2

JEE Main Exam Overall Analysis 29 January 2025 Shift 2

Parameter	Analysis
Overall difficulty level	Moderate
Difficulty Level of Physics	Easy to Moderate
Difficulty Level of Chemistry	Easy to Moderate
Difficulty Level of Mathematics	Tough
Topics asked in Physics	vector and 3D, Rotation, current electricity, and capacitance, biomolecule, ray optics
Topics asked in Chemistry	Chemical Kinetics, Chemical bonding
Topics asked in Maths	vector and 3D, Matrices, Complex numbers, Area under the curve, Sequence and Series, Ellipse

JEE Mains Shift 2 (Jan 29) Updates: Overall Paper Analysis

Some students found the chemistry section a bit lengthy. Mathematics was tough for a few and moderate for some. The physics section was easy to moderate. Overall the paper was easy to moderate.

JEE Main Jan 29 Shift 2 News updates: Section-wise difficulty level

Physics was formula-based with difficulty level.
Modern Physics - 2 question
Electrostatics -2 to 3 question
Current Electricity- one question
Ray optics - 3 questions

29 Jan JEE Main Shift 2 Chemistry section difficulty level

Chemistry was moderate. A few questions were tricky completely NCERT-based.

Inorganic has more questions. Organic chemistry had easy questions. Few questions were combined with physical and organic chemistry concept.

NTA JEE Mains 29 Jan Shift 2 Paper : Physics and Chemistry was moderate

No questions were asked about chemical kinetics. In physics, questions were asked from rotation, current electricity, and capacitance. More were asked from Organic chemistry than physical chemistry.

JEE Main 2025 Jan 29 Updates: Questions asked from Physics and Chemistry

Three questions were asked from current, one from biomolecule, and two questions from ray optics. No questions were asked from atomic structure.

JEE Main Jan 29 Shift 2 Exam News: Mathematics difficulty level

JEE Main Jan 29 shift 2 paper was moderate to tough. A few questions were challenging and lengthy. Two questions were asked from vector and 3D. Students have said that the maths paper was lengthy and time consuming.

Physics

Chemistry

Maths

JEE Main 29 January 2025 Physics Shift 2 Question Paper with Answer Key Solutions

Here is JEE Main 29 January 2025 Physics question paper with answer key solutions for Shift 2.

Q.No.	Question	Answers
1	An equiconvex lens is cut into two ways as shown. If the focal length of the parts are as mentioned in the diagram. Find L ₁/L ₂	1/2
2	A solenoid of radius 10 cm carrying current 0.29 A and having total 200 turns. If magnetic field inside solenoid is 2.9 x 10 ^-9Find length of solenoid	8πcm
3	Three identical particles, each of mass m move under the influence of mutual attraction forces. Initially they are on the vertices of an equipotential triangle of side 'a' and have equal speed v direct towards the adjacent particles as shown. The net angular momentum about the centre just before collision is	√3/2 mva
4		A (iv) B (i) C (iii) D (ii)
5	Two particles of same mass are performing SHM vertically with two different springs of spring constants K ₁and K ₂. If amplitude of both is same. Find ratio of the maximum speed of two particles.	√K ₁/K ₂
6	A physical quality Q is given as Q = ab ⁴/cd, if the percentage error is a,b,c and d are 2%, 1%, 2% and 1% the % error in Q will be	9%
7	Assertion: On increasing the pressure, the volume decrease is more in an isothermal process than in an adiabatic process. Reason: Adiabatic process is given by PV ^-1	Assertion is correct and Reason is correct
8	Two planet A and B are revolving around a massive start such that r _A= 2r _Band m _A= 4√3 m _BFind ratio of angular momentum of planet B to planet A _.	1/ 2√3
9	A capacitor C ₁= 6μF, initially charged with a call of emf 5V is disconnected and connected to another capacitor C ₂= 6μF, which is initially neutral. The charges on C ₁and C ₂after connection are	10μc, 20μc
10	Three particles of same mass are moving as shown. (all collisions are elastic)	S1 Incorrect, S2: Correct
11	An electromagnetic wave propagates in +X direction, then electric field and magnetic field are direct along	Y, Z
12	A converting lens of focal length 24cm, made of glass (μ _glass)is immersed completely in water. (μ _glass= 1.33). It will now behave like a converging lens of focal length ____ cm.	96
13	The truth table for the logical circuit shown below is
14	Figure shows two spherical surfaces of radius R having common centre. If the object is placed at O ₃Find the distance between the first images formed by both the surface.	4R/35
15	A dipole is placed such that its axis is perpendicular to the infinite charged sheet. Select the correct options	b and c
16	A cup of coffee take a time 't' to cool from 90 degree Celcius to 80 degree Celcius in a surrounding of 20 degree Celcius.If a similar cup of coffee is cooled from 80 degree Celcius to 60 degree in a same surrounding, it takes a time	13/5 t
17	Find the number of spectral lines in H-atom when deexcitation from n=4 to ground state	6
18	For a certain mechanical system the rate of accretion dm/dt is proportional to √v, where m is mass, t is time v is velocity, then the power is proportional to v ^n/2where n is ______.	5

JEE Main 29 January 2025 Chemistry Shift 2 Question Paper with Answer Key Solutions

Here is JEE Main 29 January 2025 Chemistry question paper with answer key solutions for Shift 2.

Q.No.	Question	Answers
1	Which of the following form most stable carbocation?	(Ph) ₃C-Br
2	Number of σ and π bonds respectively in hex-1-en-4-yne are	13, 3
3	0.41 g of BaSO ₄is obtained from 0.2 g of organic compound in Carius method. What is the percentage of sulphur present in organic compound?	28%
4	Which element in group 15 has the lowest Ionisation energy?	Bi
5	The number of benzenoid structural isomers having molecular formula C ₉H ₁₂which do not give Baeyer's reagent test is?	8
6	Consider the following thermochemical reactions and choose the correct option. C(diamond) → C(graphite) + x KJ C(diamond) + O ₂→ CO ₂+ y KJ C(graphite) + O ₂→ CO ₂+ z KJ	x = y - z
7	Which of the following will give azo dye test?	Aniline
8	Which of the following is an essential amino acid?	Valine
9	Which of the following ether react with HBr to form phenol?
10	A drug becomes ineffective when it decomposes to 50% its concentration. If 16 mg of said drug becomes 4 mg in 12 months, find the time in which drug becomes ineffective given that decomposition of drug follows first order kinetics.	6 months
11	Which of the following gives predominantly O ₂on electrolysis among the following? A. Aq. AgNO ₃(Pt electrodes) B. White. AgNO ₃(Ag electrodes) C. Conc. H ₂SO ₄(Pt electrodes) D. Dilute H ₂SO ₄(Pt electrodes)	AD
12	Determine the type of oxide formed by an element (A) that has the smallest size among the following. Li, Na, K, Be, B, Mg	A ₂O ₃
13	Statement-I: In partition chromatography a thin film of liquid acts as stationary phase. Statement-II: Paper chromatography is not a type of partition chromatography.	Statement 1 is correct, Statement 2 is incorrect
14	7.3 g Benzalacetone is synthesized from 10.6 g of benzaldehyde using acetone as another reactant. Percentage yield of Benzalacetone is	50%
15	How many spectral lines are observed when a sample of hydrogen atoms d excited from n = 4 to n = 1?	6
16	Find number of non-bonding electron in NO ₂^-ion is	12

JEE Main 29 January 2025 Mathematics Shift 2 Question Paper with Answer Key Solutions

Here is JEE Main 29 January 2025 Mathematics question paper with answer key solutions for Shift 2:

Q.No.	Question	Answers
1	The minimum value of n for which the number of integer terms in the binomial expansion of (7 ^1/3+ 11 ^1/2) is 183, is	2184
2	lim (n→0) ∑ (k = 1 to n) [(k ³+ 6k ²+ 11k +5)/(k + 3)! = ?	5/3
3	Sum of first three terms of an AP with integral common difference is 54 and sum of first twenty terms lies between 1600 to 1800, find a ₁₁.	90
4	Area enclosed by y ≥ \|x - 1\|, y + \|x\| ≤ 3, x ²≤ 2y - 3 is A, then 6A is (in sq. units)	10
5	Find I = 80 ₀∫ ^π/2[(sinx + cosx) / (9sinx + 16cosx)]dx	(80/337) [(25π/2) + 7 ln(9/16)]
6	If R be a relation defined on (0, π/2) such that xRy sec ²x - tan ²y = 1, then the relation R is	Reflexive and transitive only
7	Number of 7 digit numbers made with the digits 1, 2, 3 such that sum of the digits is 11 is equal to	16!
8	If z ₁lies on \| z - 8 + 2i \| = 1 and z ₂lies on \| z - 2 - 6i \| = 2, then \| z ₁- z ₂\|min is (where i = √-1)	7
9	If cos ^-1x = π + sin ^-1x + sin ^-1(2x - 1), then find the sum of all values of x.	0
10	Find the minimum value of p such that lim (x→0) { x ([1/x] + [2/x] + ... + [p/x]) - x ²([1/x ²] + [2/x ²] + ... + [9/x ²]) }	24

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