JEE Main 2026 Physics Sample Paper with Answer Key PDF Download

JEE Main 2026 Physics Sample Paper with Answer Key

The JEE Main 2026 Physics Sample Paper with Answer Key is created to help students solve real exam-level questions and strengthen their concepts. We are also sharing the link so you can access and solve them easily.

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JEE Main 2026 Physics Sample Questions

We have given some questions from the Physics sample paper for reference. Here you can check the JEE Main 2026 Physics sample paper with answer key:

Question 1: In a Young's double slit experiment, the source is white light. One of the slits is covered by a red filter and another by a green filter. In this case

1. There shall be an interference pattern for red distinct from that for green.

2. There shall be no interference fringes.

3. There shall be alternate interference fringes of red and green.

4. There shall be an interference pattern, where each fringe's pattern centre is green, and the outer edges are red.

Solution: The Frequency of Green and the frequency of Red will be different. No interference pattern is observed for two lights of different frequencies, as the phase difference does not remain constant.

Hence, the answer is option (2).

Question 2: A convex lens of focal length 30 cm is placed in contact with a concave lens of focal length 20 cm. An object is placed at 20 cm to the left of this lens system. The distance of the image from the lens in cm is _____

1. 30

2. 45

3. $\frac{60}{7}$

4. 15

Solution: Equivalent focal length

$
\begin{aligned}
& \frac{1}{\mathrm{f}}=\frac{1}{\mathrm{f}_1}+\frac{1}{\mathrm{f}_2} \\
& =\frac{1}{30}+\frac{1}{-20}=\frac{2-3}{60}=-\frac{1}{60} \\
& \mathrm{f}=-60 \mathrm{~cm}
\end{aligned}
$

Lens formula

$
\begin{aligned}
& \frac{1}{v}-\frac{1}{u}=\frac{1}{f} \\
& \frac{1}{v}-\frac{1}{-20}=\frac{1}{-60} \\
& v=-15 \mathrm{~cm}
\end{aligned}
$

Hence, the answer is option (4).

Question 3: For a nucleus of mass number A and radius R , the mass density of nucleus can be represented as

1.$A^3$

2.$\mathrm{A}^{\frac{1}{3}}$

3. $\mathrm{A}^{\frac{2}{3}}$

4. Independent of A

Solution: $\begin{aligned} & R=R_0 A^{1 / 3} \\ & \text { Density }=\frac{\text { Mass }}{\text { Volume }}=\frac{mA}{\frac{4}{3} \pi R_0^3 A}=\text { constant }\end{aligned}$

Hence, the answer is option (4).

Question 4: A plane electromagnetic wave propagates along the $+x$ direction in free space. The components of the electric field, $\vec{E}$ and magnetic field, $\vec{B}$ vectors associated with the wave in Cartesian frame are :

1.$\mathrm{E}_y, \mathrm{~B}_{\mathrm{x}}$

2.$\mathrm{E}_{\mathrm{y}}, \mathrm{B}_{\mathrm{z}}$

3.$E_x, B_y$

4.$\mathrm{E}_z, \mathrm{~B}_y$

Solution:

Direction of propagation$
=\overrightarrow{\mathrm{E}} \times \overrightarrow{\mathrm{B}}
$

$E \rightarrow y, B \rightarrow z, c \rightarrow x$

$\hat{\mathrm{E}} \times \hat{\mathrm{B}}=\hat{\mathrm{j}} \times \hat{\mathrm{k}}=\hat{\mathrm{i}}=\hat{\mathrm{c}}$

Hence, the answer is option (2).

Question 5: Two balls with the same mass and initial velocity are projected at different angles in such a way that the maximum height reached by the first ball is 8 times higher than that of the second ball. $T_1$ and $T_2$ are the total flying times of first and second ball, respectively, then the ratio of $T_1$ and $T_2$ is :

1.$2 \sqrt{2}: 1$

2.$2: 1$

3.$\sqrt{2}: 1$

4.$4: 1$

Solution: Given, $\left(\mathrm{H}_{\max }\right)_1=8 \times\left(\mathrm{H}_{\max }\right)_2$

$
\begin{aligned}
& \frac{\mathrm{u}^2 \sin ^2 \theta_1}{2 \mathrm{~g}}=8 \times \frac{\mathrm{u}^2 \sin ^2 \theta_2}{2 \mathrm{~g}} \\
& \Rightarrow \sin \theta_1=2 \sqrt{2} \sin \theta_2 \\
& \frac{\mathrm{~T}_1}{\mathrm{~T}_2}=\frac{2 \mathrm{u} \sin \theta_1 / \mathrm{g}}{2 \mathrm{u} \sin \theta_2 / \mathrm{g}}=\frac{\sin \theta_1}{\sin \theta_2}=2 \sqrt{2}
\end{aligned}
$

Hence, the answer is option (1).

Download free ebooks here:

• 10 Mock Tests PDF - JEE Main 2026
• JEE Main Previous 10 Year Questions with Detailed Solutions (2016-2025)
• JEE Main Latest Syllabus 2026

Benefits of Practising JEE Main Physics Sample Paper with Answer Key 2026

1. Enhance Speed and Accuracy

By practising with JEE Mains Physics Sample Paper with Solutions 2026 at timed intervals, you learn how to solve questions quickly. When you practice with sample papers, you also become aware of the variety of shortcuts, formulas, and question styles you will encounter in the actual test. The knowledge and skills acquired through practice with sample papers will translate to increased accuracy and overall higher test scores in the real exam.

2. Increased Conceptual Clarity

JEE Mains Physics Sample Paper with Solutions 2026 includes experience-based questions that require you to get an understanding of the concepts rather than just memorising what you have been taught. By performing the sample paper questions, you will learn how to connect different chapters of the study material together. As you begin to connect your conceptual understanding across the entire course material for and from both numerical and theoretical problems, your conceptual development becomes stronger.

3. Development of Time Management Skills

You will better understand how much time you can save using multiple-choice questions and calculations. By practising on sample papers, you will develop a skill for skipping difficult calculations and focusing on the easier computations. The ability to do this will alleviate anxiety and improve your efficiency during the test.

4. Reduction of Exam Anxiety and Development of Confidence

When you practice under conditions similar to an actual exam, you feel more comfortable and confident on the actual day of your exam. Seeing your improvement from taking the same sample papers multiple times will help instil confidence and reduce anxiety on test day. You will feel relaxed because you will be sure that you have prepared well and will feel confident when taking the actual test.

5. Knowing Your Weak and Strong Areas

Practicing sample papers will help you identify the areas in which you repeatedly make mistakes. Knowing these areas will let you get ready for the exam more efficiently.

JEE Main 2026 Marking Scheme

Let us understand the marking Scheme of the JEE Main 2026 physics sample paper with answers. The JEE Main 2026 exam marking Scheme helps students understand the structure and types of questions asked in the exam. Check it below: