Sound Waves has 36 questions in JEE Main papers from 2020 to 2026, about 5.1 per year across all shifts. All 36 are in the free PDF, with an answer key. The most asked topic is Doppler Effect (18 questions), followed by Beats (7) and Resonance (5).
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Source: official NTA JEE Main papers · Updated
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1 of this chapter's questions came back in a later paper (2021–2026). See the most repeated.
Sound Waves had about 0.2 questions per shift in recent JEE Main papers (2024–26). Most asked topic in 2024–26: Beats. About 2 questions in the 2026 papers. (Some topics were cut in 2024; see what changed.)
It came up in about 10 of the 2024–26 shifts in our bank. Question types in 2020–2026: about 18 MCQs and about 18 numerical.
| Year | Questions | Per shift | MCQ | Numerical |
|---|---|---|---|---|
| 2026 | 2 | 0.1 | 0 | 2 |
| 2025 | 4 | 0.2 | 4 | 0 |
| 2024 | 4 | 0.2 | 1 | 3 |
| 2023 | 6 | 0.3 | 4 | 2 |
| 2022 | 9 | 0.4 | 2 | 7 |
| 2021 | 6 | 0.2 | 2 | 4 |
| 2020 | 5 | 0.3 | 5 | 0 |
| 2020–2026 | 36 | 0.2 | 18 | 18 |
| Topic | Questions |
|---|---|
| Doppler Effect | 18 |
| Beats | 7 |
| Resonance | 5 |
| Speed of Sound | 5 |
| Intensity and Loudness | 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 36 questions and answers, and online practice. Nobody needs to log in.
| Year | Asked | In PDF | |
|---|---|---|---|
| 2026 | 2 | 2 | |
| 2025 | 4 | 4 | |
| 2024 | 4 | 4 | |
| 2023 | 6 | 6 | |
| 2022 | 9 | 9 | |
| 2021 | 6 | 6 | |
| 2020 | 5 | 5 |
How many Sound Waves 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 |
|---|---|---|---|---|---|---|---|---|---|
| Doppler Effect | 18 | 50% | · | · | · | 5 | 5 | 4 | 4 |
| Beats | 7 | 19% | 1 | 1 | 2 | · | 2 | 1 | · |
| Resonance | 5 | 14% | · | 1 | · | · | 2 | 1 | 1 |
| Speed of Sound | 5 | 14% | 1 | 2 | 1 | 1 | · | · | · |
| Intensity and Loudness | 1 | 3% | · | · | 1 | · | · | · | · |
| All topics | 36 | 100% | 2 | 4 | 4 | 6 | 9 | 6 | 5 |
Swipe the table sideways for older years.
All 2 JEE Main 2026 Sound Waves questions in the free PDF, latest shift first.
JEE Main 2026 · 28 Jan · Shift 2 · Beats
Two tuning forks A and B are sounded together giving rise to 8 beats in 2 s. When fork A is loaded with wax, the beat frequency is reduced to 4 beats in 2 s. If the original frequency of tuning fork B is 380 Hz then original frequency of tuning fork A is _________ Hz.
JEE Main 2026 · 23 Jan · Shift 2 · Speed of Sound
The velocity of sound in air is doubled when the temperature is raised from to . The value of is .
JEE Main 2025 · 7 Apr · Shift 1 · Beats
Two harmonic waves moving in the same direction superimpose to form a wave where t is in seconds. Find the period with which they beat. (close to nearest integer)
Answer: (C)
JEE Main 2025 · 4 Apr · Shift 1 · Speed of Sound
Consider the sound wave travelling in ideal gases of , and . All the gases have the same ratio , where is the pressure and is the density. The ratio of the speed of sound through the gases is given by
Answer: (C)
JEE Main 2025 · 3 Apr · Shift 2 · Resonance
In the resonance experiment, two air columns (closed at one end) of 100 cm and 120 cm long, give 15 beats per second when each one is sounding in the respective fundamental modes. The velocity of sound in the air column is:
Answer: (D)
JEE Main 2024 · 30 Jan · Shift 2 · Intensity and Loudness
A point source is emitting sound waves of intensity at the origin. The difference in intensity (magnitude only) at two points located at a distances of and from the origin respectively will be _________ .
Answer: 3
JEE Main 2023 · 11 Apr · Shift 2 · Doppler Effect
A car P travelling at sounds its horn at a frequency of . Another car is travelling behind the first car in the same direction with a velocity . The frequency heard by the passenger of the car is approximately [Take, velocity of sound ]
Answer: (C)
The free PDF above has all 36 questions grouped by topic, with an answer key.
Answer Sound Waves PYQs in the browser, get each one checked instantly and open the step-by-step solution where there is one.
Practise Sound Waves online36 questions from 2020 to 2026, about 5.1 per year. In 2026 it had 2.
By past papers: Doppler Effect (50%), Beats (19%) and Resonance (14%) of all Sound Waves 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 Sound Waves 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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