Amrita University B.Tech 2026
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JEE Mains 2025 January 29 Shift 1 Answer Key - The National Testing Agency has released the JEE Main 2025 session 1 answer key on February 4, 2025. The JEE Main session 1 answer key 2025 link on the official website, jeemain.nta.nic.in. The last date to raise objections or submit challenges against the JEE Main 2025 session 1 answer key is February 6, 2025. The JEE Main 2025 result will be announced on February 12, 2025. The authority conducted the JEE Main 2025 exam for session 1 on January 22, 23, 28, 28, 29 and 30, 2025.
Direct link to download the JEE Mains 2025 session 1 answer key
The table below provides the required dimensions and specifications for documents for JEE Main 2026.
| Particular | Dimension | Size |
| Photograph in JPEG/JPG format | 3.5 cm x 4.5 cm | 10 KB to 200 KB |
| Signature in JPEG/JPG format | 3.5 cm x 1.5 cm | 10 KB to 100 KB |
| Class 10 certificate or equivalent in PDF format | 10 KB to 200 KB | |
| UDID Certificate in PDF Format (if applicable) | 50 KB to 300 KB | |
| Identity Proof in jpg/jpeg format | 10 KB to 200 KB |
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Various coaching institutes released the unofficial answer key for the 29 Jan JEE Main shift 1 answer key 2025 online. Aspirants can access the subject-specific JEE Main 2025 answer keys, and its analysis from this page. Scroll down for more information.
Also Read: JEE Main 2025 Jan 29 Shift 1 Question Paper | JEE Main 2025 Jan 29 Shift 2 Question Paper











Several coaching institutes like Akash Institute, Resonance, FITJEE, Reliable Kota, Sri Chaitanya etc., released JEE Mains 29 Jan Shift 1 Question Paper 2025. Candidates provided the JEE 29 Jan shift 1 answer key PDF download link online. Check the JEE Main 2025 Jan 29 answer key shift 1 maths, physics and chemistry in the following tables.
Subject | JEE Main 2025 Jan 29 answer key shift 1 pdf download |
Physics | |
Mathematics | |
Chemistry | JEE Main 2025 Jan 29 shift 1 Chemistry answer key |
Also Check:
Subject experts at top educational institutions and coaching centres provide in-depth analysis of the JEE main exam. Candidates can check the JEE main exam analysis for all the days and shifts below.
Frequently Asked Questions (FAQs)
Candidates can check the official JEE Mains answer key 2025 shift 1 from the NTA website, jeemain.nta.nic.in. However, the link for the unofficial answer key of JEE Mains is updated here.
272 is an excellent score in JEE Mains 2025. Candidates can get the best courses in top institutions with a 272 score in JEE Main.
On Question asked by student community
The date of JEE Advanced 2026 is not announced yet.
But according to previous years records we can assume that the registration for JEE Advanced 2026 exam will likely start in April and the date of exam will lie in the month of May.
For your upcoming JEE Advanced 2026 will need to study more harder than you did in your JEE Mains Exam.
Also you need to check the syllabus which is being asked in the exam. Here is the detailed information about JEE Advanced 2026 ---- Check Here
Hello,
Yes, you need an OBC-NCL certificate if you want to claim the OBC-NCL reservation in JEE Main .
Here are the key points:
If you want the OBC-NCL quota, you must upload a valid OBC-NCL certificate.
The certificate should be issued by the government and must follow the latest format.
It should usually be issued on or after 1 April of the current admission year.
If you do not have a valid certificate, you will be treated as a General (Unreserved) candidate.
If you apply under General category, then no OBC certificate is needed.
Hope it helps !
You can get the syllabus for the JEE examination for all the three subjects present viz Physics, chemistry and mathematics in the updated pdf format from the link given below by careers 360 to get the Idea of deleted and revised syllabus for the session of 2026
https://engineering.careers360.com/articles/jee-main-syllabus-2026
Hello,
No, radioactivity is not included in the current
JEE Main syllabus
.
NTA has removed the full chapter from the Physics syllabus. This includes:
Alpha, beta, gamma radiations
Properties of these radiations
Radioactive decay law
Related formulas and concepts
So you do not need to study radioactivity for JEE Main.
Hope it helps !
Hello
Practising previous year's questions will help you score well. Semiconductor is an important topic and scoring one from the point of examination. They include concepts like Fermi levels, depletion region behaviour, rectifier frequency, and the role of Zener diodes. These are the exact types of questions that get repeated every year.
You can find the list of chapters and pyq's from each chapter by clicking here:
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Attempt JEE Main online mock test based on the updated syllabus. Check your preparation and identify your weak points.
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