Experimental Skills has 58 questions in JEE Main papers from 2020 to 2026, about 8.3 per year across all shifts. All 58 are in the free PDF, with an answer key. The most asked topic is Vernier Callipers and Screw Gauge (46 questions), followed by Optics Experiments (6) and Metre Bridge and Potentiometer (3).
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5 of this chapter's questions came back in a later paper (2021–2026). See the most repeated.
Experimental Skills had about 0.5 questions per shift in recent JEE Main papers (2024–26). Most asked topic: Vernier Callipers and Screw Gauge. About 9 questions in the 2026 papers. (Some topics were cut in 2024; see what changed.)
It came up in about 24 of the 2024–26 shifts in our bank. Question types in 2020–2026: about 44 MCQs and about 14 numerical.
| Year | Questions | Per shift | MCQ | Numerical |
|---|---|---|---|---|
| 2026 | 9 | 0.5 | 9 | 0 |
| 2025 | 4 | 0.2 | 2 | 2 |
| 2024 | 15 | 0.8 | 13 | 2 |
| 2023 | 5 | 0.2 | 2 | 3 |
| 2022 | 11 | 0.5 | 6 | 5 |
| 2021 | 7 | 0.3 | 5 | 2 |
| 2020 | 7 | 0.4 | 7 | 0 |
| 2020–2026 | 58 | 0.4 | 44 | 14 |
| Topic | Questions |
|---|---|
| Vernier Callipers and Screw Gauge | 46 |
| Optics Experiments | 6 |
| Metre Bridge and Potentiometer | 3 |
| Pendulum and g Measurement | 2 |
| p-n Junction Characteristics | 1 |
Counted from PrepWiser's question bank of JEE Main papers, 2020–2026. Per shift = questions that year ÷ shifts in our bank. Updated .
Two free sheets, made from the past JEE Main questions on this chapter.
The link opens this page: the free PDF with 58 questions and answers, and online practice. Nobody needs to log in.
| Year | Asked | In PDF | |
|---|---|---|---|
| 2026 | 9 | 9 | |
| 2025 | 4 | 4 | |
| 2024 | 15 | 15 | |
| 2023 | 5 | 5 | |
| 2022 | 11 | 11 | |
| 2021 | 7 | 7 | |
| 2020 | 7 | 7 |
How many Experimental Skills questions each topic had in every JEE Main year (all shifts), counting every question asked, including ones not in the PDF. Darker cells mean more questions.
| Topic | Asked | Share | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 |
|---|---|---|---|---|---|---|---|---|---|
| Vernier Callipers and Screw Gauge | 46 | 79% | 7 | 4 | 12 | 2 | 9 | 7 | 5 |
| Optics Experiments | 6 | 10% | 1 | · | 2 | 3 | · | · | · |
| Metre Bridge and Potentiometer | 3 | 5% | · | · | 1 | · | 2 | · | · |
| Pendulum and g Measurement | 2 | 4% | 1 | · | · | · | · | · | 1 |
| p-n Junction Characteristics | 1 | 2% | · | · | · | · | · | · | 1 |
| All topics | 58 | 100% | 9 | 4 | 15 | 5 | 11 | 7 | 7 |
Swipe the table sideways for older years.
All 9 JEE Main 2026 Experimental Skills questions in the free PDF, latest shift first.
JEE Main 2026 · 5 Apr · Shift 1 · Vernier Callipers and Screw Gauge
In a Vernier calipers, when both jaws touch each other, zero of the Vernier scale is shifted to the right of zero of the main scale and Vernier division coincides with a main scale reading. If the value of 1 main scale division is 1 mm and there are 10 Vernier scale divisions, then the Vernier caliper has
JEE Main 2026 · 4 Apr · Shift 1 · Vernier Callipers and Screw Gauge
In a screw gauge when the circular scale is given five complete rotations it moves linearly by 2.5 mm . If the circular scale has 100 divisions, the least count of screw gauge is mm.
JEE Main 2026 · 2 Apr · Shift 2 · Vernier Callipers and Screw Gauge
In a screw gauge the zero of main scale reference line coincides with the fifth division of the circular scale when two studs are in contact. There are 100 divisions in circular scale and pitch of screw gauge is 0.1 mm. When diameter of a sphere is measured, the reading of main scale is 5 mm and 50th division of circular scale coincides with the reference line of main scale. The diameter of sphere is ______ mm.
JEE Main 2026 · 28 Jan · Shift 1 · Vernier Callipers and Screw Gauge
When both jaws of vernier callipers touch each other, zero mark of the vernier scale is right to zero mark of main scale, mark on vernier scale coincides with certain mark on the main scale. While measuring the length of a cylinder, observer observes 15 divisions on main scale and division of vernier scale coincides with a main scale division. Measured length of cylinder is mm.
(Least count of Vernier calliper )
JEE Main 2026 · 28 Jan · Shift 2 · Vernier Callipers and Screw Gauge
In an experiment, a set of reading are obtained as follows - 1.24 mm, 1.25 mm, 1.23 mm, 1.21 mm. The expected least count of the instrument used in recording these readings is _______ mm.
JEE Main 2026 · 24 Jan · Shift 2 · Vernier Callipers and Screw Gauge
In a vernier callipers, 50 vernier scale divisions are equal to 48 main scale divisions. If one main scale division , then the least count of the vernier callipers is mm.
JEE Main 2026 · 23 Jan · Shift 1 · Vernier Callipers and Screw Gauge
In a screw gauge, the zero of the circular scale lies 3 divisions above the horizontal pitch line when their metallic studs are brought in contact. Using this instrument thickness of a sheet is measured. If pitch scale reading is 1 mm and the circular scale reading is 51 then the correct thickness of the sheet is mm.
[Assume least count is 0.01 mm ]
JEE Main 2026 · 22 Jan · Shift 2 · Pendulum and g Measurement
JEE Main 2026 · 22 Jan · Shift 2 · Optics Experiments
In parallax method for the determination of focal length of a concave mirror, the object should always be placed:
JEE Main 2024 · 5 Apr · Shift 1 · Metre Bridge and Potentiometer
In the experiment to determine the galvanometer resistance by half-deflection method, the plot of vs the resistance (R) of the resistance box is shown in the figure. The figure of merit of the galvanometer is _________ division. [The source has emf ]
Answer: 5
JEE Main 2024 · 4 Apr · Shift 1 · Optics Experiments
In an experiment to measure focal length () of convex lens, the least counts of the measuring scales for the position of object (u) and for the position of image (v) are and , respectively. The error in the measurement of the focal length of the convex lens will be:
Answer: (C)
JEE Main 2020 · 3 Sep · Shift 2 · p-n Junction Characteristics
Answer: (D)
JEE Main 2020 · 8 Jan · Shift 2 · Pendulum and g Measurement
Answer: (A)
The free PDF above has all 58 questions grouped by topic, with an answer key.
Answer Experimental Skills PYQs in the browser, get each one checked instantly and open the step-by-step solution where there is one.
Practise Experimental Skills online58 questions from 2020 to 2026, about 8.3 per year. In 2026 it had 9.
By past papers: Vernier Callipers and Screw Gauge (79%), Optics Experiments (10%) and Metre Bridge and Potentiometer (5%) of all Experimental Skills questions.
Yes. The PDF and its answer key are free, and you can practise the questions online with no login, with step-by-step solutions where available.
Prefer to solve online? Practise Experimental Skills online with step-by-step solutions where available, or work through JEE Main papers shift by shift.
JEE Main PYQs by year: 2026 · 2025 · 2024 · 2023 · 2022 · 2021 · 2020
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