String Wave is among the most important and repeated topic in the JEE Advanced 2025 syllabus (Physics). Over the past 10 years, concepts such as wave speed, standing waves, harmonics, and the effect of tension on strings have been consistently asked in the JEE Advanced exam.

Most important Topics for JEE Advanced 2025 (String Waves):

Based on the JEE Advanced previous year paper trends, the following are the high-weightage topics in JEE Advanced 2025:

✔ Transverse Waves & Wave Speed

✔ Standing Waves & Harmonics

✔ Nodes and Antinodes

✔ Fundamental Frequency & Overtones

✔ Tension and Linear Mass Density

✔ Wave Interference on Strings

JEE Advanced previous year question papers can assist IIT Aspirants to achieve higher rankings in JEE Advanced 2025.

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Listed below the most repeated questions JEE Advanced Previous Year Questions (PYQs) for String Wave along with detailed solutions

String Wave JEE Advanced Previous Year Questions

 
1. The extension in a string, obeying Hooke's law, is x. The speed of transverse wave in the stretched string is v. If the extension in the string is increased to 1.5x, the speed of transverse wave will be



JEE Advanced - 1996 JEE Advanced
 

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2. A string of length 0.4 m and mass 10⁻² kg is tightly clamped at its ends. The tension in the string is 1.6 N. Identical wave pulses are produced at one end at equal intervals of time Δt. The minimum value of Δt, which allows constructive interference between successive pulses, is



JEE Advanced - 1998 JEE Advanced
 

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3. A siren placed at a railway platform is emitting sound of frequency 5 kHz. A passenger sitting in a moving train A records a frequency of 5.5 kHz, while the train approaches the siren. During his return journey in a different train B he records a frequency of 6.0 kHz while approaching the same siren. The ratio of the velocity of train B to that of train A is.



JEE Advanced - 2002 JEE Advanced
 

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4. A wave is represented by the equation: y = A sin(10πx + 15πt + π/3), where x is in meters and t is in seconds. The expression represents



JEE Advanced - 1990 JEE Advanced
 

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5. One end of a taut string of length 3 m along the x-axis is fixed at x = 0. The speed of the waves in the string is 100 m/s. The other end of the string is vibrating in the y direction so that stationary waves are set up in the string. The possible waveform(s) of these stationary waves is (are)



JEE Advanced - 2014 JEE Advanced
 

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6. A source, approaching with speed u towards the open end of a stationary pipe of length L, is emitting a sound of frequency fs. The farther end of the pipe is closed. The speed of sound in air is v and f₀ is the fundamental frequency of the pipe. For which of the following combination(s) of u and fs, will the sound reaching the pipe lead to a resonance?



JEE Advanced - 2021 JEE Advanced
 

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JEE Advanced 2025 Exam Pattern For Physics

Aspect Paper 1 (Physics Section) Paper 2 (Physics Section)
Total Questions 17 questions 17 questions
Total Marks 60 marks 60 marks
Sections 4 sections 4 sections
Types of Questions - Multiple-Choice Questions (MCQs) with single correct answer
- MCQs with multiple correct answers
- Numerical Value Questions
- Matching-Type Questions		 Similar to Paper 1: MCQs (single and multiple correct), Numerical Value, Matching-Type
Marking Scheme - Full marks for correct answers (varies: +3 or +4 per question)
- Partial marks for partially correct MCQs (e.g., +1 or +2)
- Negative marking for incorrect answers in some sections (-1 or -2)
- Zero marks for unattempted questions		 Similar to Paper 1: Full, partial, and negative marking apply, with specifics varying by section
Duration 3 hours (shared with Chemistry and Mathematics) 3 hours (shared with Chemistry and Mathematics)

JEE Advanced Difficulty Level 2025 For Physics (Expected)

Aspect Paper 1 (Physics Section) Paper 2 (Physics Section)
Overall Difficulty Moderate Moderate to Difficult
Conceptual Questions Moderate, focusing on fundamentals like Mechanics, Thermodynamics, and Optics Slightly tougher, with more application-based questions on Electromagnetism and Modern Physics
Numerical Complexity Moderate, with some lengthy calculations Higher, involving complex problem-solving in topics like Rotational Dynamics and Fluid Mechanics
Topic Focus Balanced between Class 11 and 12; more weight on Mechanics, Thermodynamics Slightly more Class 12 topics like Magnetism, Electromagnetic Induction, and Capacitors
Student Feedback Likely to be manageable with strong basics Expected to feel tougher due to intricate calculations and abstract concepts

Download Last 10 years JEE Advanced Previous Year Question Papers (2024 - 2016)

IIIT JEE Advanced Previous Year Question Papers

You can download free IIT JEE Advanced Previous Year Question Paper PDFs from the table provided below:-

JEE Advanced Paper Name Question Paper Link
JEE Advanced 2024 Question Paper PDF Click Here
JEE Advanced 2023 Question Paper PDF Click Here
JEE Advanced 2022 Question Paper PDF Click Here
JEE Advanced 2021 Question Paper PDF Click Here
JEE Advanced 2020 Question Paper PDF Click Here
JEE Advanced 2019 Question Paper PDF Click Here
JEE Advanced 2018 Question Paper PDF Click Here
JEE Advanced 2017 Question Paper PDF Click Here
JEE Advanced 2016 Question Paper PDF Click Here

Frequently Asked Questions

1. Is waves important for JEE Advanced?

Yes, waves is a significant subject for JEE Advanced, particularly in the syllabus for Physics. It's part of the mechanics and oscillations section, which usually carries high marks in the examination. Wave-related questions are very common in Paper 1 as well as Paper 2 and cover topics such as standing waves, Doppler effect, superposition, and wave optics. Over the last few years, wave-based numerical problems have gained popularity, and therefore it has become a priority subject to study for JEE Advanced 2025. Coupling it with contemporary physics will assist you in solving inter-disciplinary problems, a typical pattern in IIT JEE.

2. Which is the most scoring subject in JEE Advanced?

The most scoring subject in JEE Advanced varies for each student depending on their strengths, but historically, Mathematics is often considered the most scoring due to its objective nature and logical problem-solving approach. Topics like calculus, coordinate geometry, and algebra are trending in JEE Advanced 2025 because they often have straightforward solutions if concepts are clear. That being said, Chemistry too can be very scoring, particularly organic chemistry and physical chemistry, since they have direct questions and are not as conceptually difficult as Physics. NCERT should be focused on for Chemistry and PYQs for Mathematics should be practiced to score the highest.

3. Is the JEE Advanced exam hard?

Yes, the JEE Advanced test is universally considered to be among the most difficult entrance tests in the world due to its increased difficulty level, conceptual depth, and irregular question patterns. It requires problem-solving ability, time management, and thorough knowledge of Physics, Chemistry, and Mathematics. Trending challenges in JEE Advanced 2025 are multi-concept questions, application-based problems, and numerical answer-type questions, demanding accuracy. But with steady preparation strategies like solving mock tests, sharpening revision, and getting high-weightage topics perfect, students can crack it. The trends in cutoff also indicate that smart preparation can get you through.

4. Is there any repeated questions in JEE?

Repeated questions in JEE Advanced in a batch are not common since the examination is made to test out-of-the-box thinking and problem-solving. Yet, question patterns, ideas, and types of problems tend to be repeated with slight modifications. For instance, subject areas such as electromagnetism, thermodynamics, and organic reaction mechanisms tend to occur with the same blueprints. In JEE Advanced 2025, solving previous year questions (PYQs) and mock tests is a popular approach since it makes you realize these patterns. Though the precise question won't be repeated, the basic conceptual strategy generally does, so revision of previous papers is a central aspect of IIT JEE preparation.