JEE Main 2026 January 28 Shift 1 Answer Key Available: Download PDF & Check Solutions

JEE Main 2026 January 28 Shift 1 Answer Key Available: Download PDF & Check Solutions

K Guna SahitiUpdated on 28 Jan 2026, 05:58 PM IST

JEE Main 2026 January 28 Shift 1 Answer Key - Various Coaching Institutes has released the JEE Main 2026 January 28 shift 1 answer key online. The answer key for Jan 28 shift 1 JEE Main for Physics, Maths and Chemistry are available now. The JEE Main 28 Jan shift 1 answer key and JEE Main question paper are released as per student's reaction and are of memory-based. Candidates can predict their score with the help of JEE Main 28 January shift 1 answer key 2026. Thereby, determine their performance in the JEE Main 2026. The authority is holding the session 1’s last JEE Main exam for BTech admission on January 28.
Related- JEE Main 2026 Jan 28 Shift 1 Question Paper

LiveJEE Mains 2026 Jan 28 LIVE: Shift 2 ends for BTech; answer key, exam paper analysisJan 28, 2026 | 10:03 PM IST

More than 13 lakh candidates appeared till date for the JEE Mains 2026 examination with an overall attendance of 96.26%.

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This Story also Contains

  1. JEE Main 2026 Jan 28 Shift 1 Answer Key by Coaching Centres
  2. JEE Main 2026 January 28 Shift 1 Answer Key
  3. JEE Main 2026 Jan 28 Shift 1 Analysis
  4. How to Calculate the Marks Using JEE Main 2026 Answer Key
  5. JEE Main 2026 Marks Vs Percentile- Expected
  6. Official JEE Main 2026 Answer Key
  7. JEE Main Result Date 2026
JEE Main 2026 January 28 Shift 1 Answer Key Available: Download PDF & Check Solutions
JEE Main 2026 Jan 28 Shift 1 Answer Key PDF

NTA will release the official JEE Main 2026 answer key on the official website, jeemain.nta.nic.in. Until then, candidates can go through this page for the memory-based questions and JEE Main 28 Jan shift 1 answer key below.

JEE Main 2026 Jan 28 Shift 1 Answer Key by Coaching Centres

Find the unofficial JEE Main answer key 2026 for shift 1 Jan 28 here. Famous coaching centres and other institutes has released the JEE Main Jan 28 Shift 1 paper details below. The coaching institutes like Aakash, Allen, Resonance, Sri Chaitanya, etc., released the JEE Jan 28 shift 1 paper pdf after the exam is over.

JEE Main 28 Jan shift 1 Answer Key By Resonance

JEE Main 2026 January 28 Shift 1 Answer Key BY Aakash BYJU’s

Question PAperJEE Main 2026 January 28 Shift 1 Answer Key

Unofficial JEE Main Jan 28 Shift 1 answer key 2026

Jan 28 Shift 1 JEE Mains 2026 answer key PDF download link

JEE Main 28 Jan Shift 1 Answer Key By Allen

JEE Main 2026 January 28 Shift 1 Answer Key By Sri Chaitanya

Question paperJEE Main 28 Jan shift 1 answer key

Unofficial JEE Main Jan 28 Shift 1 Paper 2026

JEE Main 28 Jan Shift 1 Answer Key PDF download link

JEE Main 2026 January 28 Shift 1 Answer Key

Candidates can check the memory-based JEE Main 2026 Jan 28 shift 1 solutions below. Coaching centres like Aakash JEE, eSaral, Vedantu, and Careers360 provide the analysis and JEE Main 28 Jan shift 1 answer key online. The same are updated here.

JEE Main 28 Jan shift 1 answer key

JEE Main 28 Jan shift 1 answer key

JEE Main 28 Jan shift 1 answer key

JEE Main 28 Jan shift 1 answer key

JEE Main 28 Jan shift 1 answer key

JEE Main 28 Jan shift 1 answer key

JEE Main 28 Jan shift 1 answer key

JEE Main 28 Jan shift 1 answer key

JEE Main 2026 Jan 28 Shift 1 Analysis

Aspirants are advised to go through the table given below to know the paper analysis with respect to the JEE Main 28 Jan shift 1 answer key. It will help them determine the JEE Main 2026 Jan 28 shift 1 marks vs percentile.

JEE Mains Jan 28 Shift 1 Paper Analysis

SubjectDifficulty Level
PhysicsEasy to moderate but lengthy
MathsModerate and lengthy
ChemistryModerate and lengthy
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Direct link for JEE Main Jan 28 Shift 1 Answer Key 2026-

JEE Main 2026 Rank Predictor
Use the JEE Main 2026 Rank Predictor to estimate your expected rank based on your scores or percentile and plan your college options smartly.
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How to Calculate the Marks Using JEE Main 2026 Answer Key

Candidates can refer to the following table for the JEE Main marking scheme. NTA has defined the number of marks offered for a correct and an incorrect answer. Aspirants will be able to calculate their probable marks using the JEE Main shift 1 Jan 28 answer key and the marking scheme.

  • Know the marking scheme

  • Add 4 marks to all the correct answers.

  • Remove one mark for each of the incorrect answers from the above value.

  • The resulting number is the raw marks achieved in the JEE Main exam.

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JEE Main 2026 Marking Scheme

QuestionMarks

One question

4 marks

Correct answer

4 marks

Incorrect answer

Minus 1 mark

Unmarked answer

No marks

Partial or multiple answers

No marks

JEE Main Syllabus: Subjects & Chapters
Select your preferred subject to view the chapters

JEE Main 2026 Marks Vs Percentile- Expected

After knowing the probable marks, aspirants can relate them to the percentile range given below. Since NTA does not release raw marks and only the percentile is given in the JEE results, candidates can use the following table to know the JEE Main 2026 marks vs percentile.

JEE Mains Expected Marks vs Percentile 2026

MarksPercentile

300-291

100-99.999

292-280

99.99890732 - 99.99617561

279-271

99.99417236 - 99.99153171

268-259

99.99034797 - 99.97687156

258-250

99.97413985 - 99.95228621

249-240

99.95028296 - 99.91549924

239-230

99.91395128 - 99.87060821

229-220

99.86150253 - 99.78191884

219-210

99.77499852 - 99.69159044

209- 200

99.68494329 - 99.57503767

199-190

99.56019541 - 99.40858575

189- 180

99.39319714 - 99.17311273

179-170

99.1567225 - 98.87981861

169-160

98.85149993 - 98.52824811

159-150

98.49801724 -98.09290531

149-140

98.07460288 - 97.54301298

139-130

97.4927496 - 96.87838902

129-120

96.80927687 - 96.0687115

119-110

95.983027 - 95.05625037

109-100

94.96737888 - 93.8020333

99-90

93.67910655 - 92.21882783

89-80

92.05811248 - 90.27631202

79-70

90.0448455 - 87.51810893

69-60

87.33654157 - 83.89085926

59-50

83.5119717 - 78.35114254

49-40

77.81927947 - 69.5797271

39-30

68.80219265 - 56.09102043

29-20

54.01037138 - 36.58463962

19-10

35.2885364 - 18.16647924

9-0

17.14582299 -5.71472799

Official JEE Main 2026 Answer Key

The National Testing Agency releases the provisional JEE Main 28 Jan shift 1 answer key 2026 first. Aspirants will be able to download the solutions and cross-check them using the JEE Main response sheet. An opportunity is provided to challenge the answers. After which, the final answer key is published along with the results.

JEE Main Result Date 2026

As per the official notice, the JEE Main result date 2026 is by February 12, for session 1. The final JEE Main answer key will also be released along with the results. Candidates will be able to know their percentile and rank through the scorecard. The official website, where the result will be displayed, is jeemain.nta.nic.in. Candidates will be able to download the JEE Main scorecard using their application number, password and CAPTCHA code.

Frequently Asked Questions (FAQs)

Q: Is the JEE Main 2026 28th Jan Shift 1 answer key released?
A:

Yes, the JEE Main 2026 shift 1 Jan 28 answer key has been released online.

Q: Where to download the JEE Mains January 28 shift 1 answer key?
A:

The unofficial JEE Main 2026 January 28 Shift 1 Answer Key PDF has been uploaded in this page. NTA will release the official one later.

Q: How to check the official JEE Mains 2026 answer key?
A:

Candidates have to log in using their registration number and password to check the official JEE answer key 2026.

Q: Can I calculate marks using the JEE Main 2026 January 28 Shift 1 answer key?
A:

Yes, candidates can use the Jan 28 Shift 1 JEE answer key to calculate their marks. 

Q: Was JEE Main 2026 January 28 Shift 1 tough?
A:

The JEE Main 2026 Jan 28 shift 1 paper analysis is yet to be released.

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Questions related to JEE Main

On Question asked by student community

Have a question related to JEE Main ?

JEE Main 28 Jan shift 2 exam will end at 6 PM. The complete analysis and memory-based questions will solution will be updated in the below article. Keep checking the page-

https://engineering.careers360.com/articles/jee-main-2026-january-28-shift-2-question-paper-with-solutions-pdf

Math and Chemistry was difficult and Physics was moderate. The complete analysis is available here- https://engineering.careers360.com/articles/jee-main-2026-january-28-shift-1-question-paper-with-solutions-pdf

You can also check the memory-based questions and detailed solutions for JEE Main Jan 28 shift 1 paper.

HI Manisha Maharana

You can download the JEE Mains 10 Free Mock Test with Detailed solutions. Its a feely downloadable pdf.
https://engineering.careers360.com/download/sample-papers/jee-main-10-full-mock-test-and-explanations-pdf

Also, you can check ad attemp the online mock test on our platform.
https://learn.careers360.com/test-series-jee-main-free-mock-test/



A general equation of a circle is

$
x^2+y^2+2 g x+2 f y+c=0
$

Since it passes through $(0,0)$,

$
c=0
$

So the equation becomes

$
x^2+y^2+2 g x+2 f y=0
$

It cuts the x -axis at ( $a, 0$ ).

Substituting:

$
a^2+2 g a=0
$

g=-a/2