JEE Main 2020 January 7 Official Question Paper with Answer Key

Hello,

You do not need to worry.

If your 10th online result copy clearly shows your name, roll number, school name, board name, and marks, then NTA usually accepts it. For JEE Main application, the Class 10 certificate is only for verification of your date of birth , not for marks.

But if NTA gives a correction window and allows replacing the document, it is better to upload the proper 10th board mark sheet . This avoids any doubt later.

Sugessions:

• If correction window opens then Re-upload the correct 10th mark sheet .

• If no option is given then your current document is normally fine.

No need to panic. This is a common mistake.

Hope it helps !

Hello there!

JEE mains consist of three subjects physics, chemistry and math. There are several authors whose books you can refer for JEE mains exam preparation.

Following is the link attached where all the information about the best books for JEE mains preparation is given. Kindly go through this. Hope it helps!

https://engineering.careers360.com/articles/best-books-for-jee-main

Thank you !

Hi,

In your JEE application, you have to write the application number of your c entral caste certificate because for central government admissions like JEE, you have to use details of your central caste certificate. NTA asks for the application number, which is written on the upper side of the central caste certificate.

Hope it helps!!!

Hello,

You should select the General Category during the JEE Mains application process if your community is not listed under the central list of OBCs on the National Commission for Backward Classes website. Since you can't choose "VJA" and reservation benefits are only for those listed on the central list, applying under the general category is the correct procedure.

I hope it will clear your query!!

HELLO,

JEE Mains study materials are currently available in only English and Hindi, so if you need the material in Hindi and English, then you can check for it in Careers360. All the materials are available for all subjects for JEE Mains.

Hope it helps!!!

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 !

Hello,

Yes, transistor is included in the JEE Main 2026 Physics syllabus .

Topics generally covered are:

• Junction transistor and its working

• Characteristics of a transistor

• Transistor as an amplifier (common-emitter)

• Transistor as a switch

• Basic use of transistor in simple circuits

Hope it helps !

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:

CLICK HERE