Class 11 Physics — Chapter 15: Waves
66 practice questions · 22 Easy · 22 Medium · 22 Hard
Practise Class 11 Physics Chapter 15, "Waves", with 66 NCERT-aligned multiple-choice questions. The set is split into 22 Easy, 22 Medium and 22 Hard questions, so you can warm up on the fundamentals and then push into the exam-level problems that separate top scorers in CBSE Board exams, JEE Main, JEE Advanced and NEET UG.
"Waves" is one of the chapters where numerical problem-solving, derivations and conceptual application really pays off. Each MCQ on this chapter is timed and uses exam-grade marking (+2 correct, −1 wrong, 0 skipped), training the same accuracy-under-pressure that real papers demand. Every question carries a short explanation, so a wrong answer becomes a quick lesson rather than a dead end — the fastest way to close gaps before a test.
Use this chapter as targeted revision: attempt the Easy set first to confirm your basics on Waves, then move to Medium and Hard to test application and problem-solving. Your accuracy, streaks and XP save automatically, and the chapter feeds into your overall Class 11 Physics mastery score. A few sample questions are shown below; sign in free to practise all 66.
Key concepts: Waves (Class 11 Physics)
This chapter covers wave motion — transverse and longitudinal waves, the wave equation, superposition, standing waves, beats, and the Doppler effect.
- Types of waves
- Transverse (vibration ⊥ to propagation) and longitudinal (vibration ∥ to propagation, e.g. sound).
- Wave parameters
- Wavelength λ, frequency f, period T and speed v are related by v = fλ.
- Superposition & standing waves
- Overlapping waves add; two opposite waves form standing waves with fixed nodes and antinodes.
- Beats
- Two slightly different frequencies produce a periodic rise and fall in loudness; beat frequency = |f₁ − f₂|.
- Doppler effect
- Relative motion between source and observer changes the observed frequency of sound.
Key formulas — Waves
💡 Exam tips for Waves
- Standing waves have nodes (zero amplitude) and antinodes (maximum) at fixed positions — they don't transport energy.
- For the Doppler effect, carefully assign signs to source and observer velocities relative to the direction of sound.
Sample questions
Light is a ___ wave.
EM waves with E and B perpendicular to direction of propagation.
Wave speed v =
v = fλ.
Two tuning forks 256 Hz and 260 Hz heard together produce beats at:
Beat freq = |f₁ − f₂|.
Waves — FAQs
What are the key concepts in Class 11 Physics Waves?+
This chapter covers wave motion — transverse and longitudinal waves, the wave equation, superposition, standing waves, beats, and the Doppler effect. Key ideas include Types of waves, Wave parameters, Superposition & standing waves, Beats, Doppler effect.
What does Class 11 Physics Chapter 15 (Waves) cover on XamBaaz?+
It covers 66 NCERT-aligned MCQs on "Waves" — 22 Easy, 22 Medium and 22 Hard — each with a timed quiz and an instant explanation, suitable for CBSE Board exams, JEE Main, JEE Advanced and NEET UG.
Are these "Waves" questions free to practise?+
Yes — sign in with Google to practise "Waves" free. Full unlimited access is ₹999/year (limited-time launch price), with no per-chapter charges.
How should I revise "Waves" for the exam?+
Start with the Easy quiz to confirm your fundamentals, then attempt Medium and Hard for application-level practice. Review each explanation, retry the questions you miss, and track your accuracy on this chapter until it is consistently high.
Practise all 66 questions free
Timed quizzes, instant scoring, streaks and XP. Sign in with Google — no card needed.
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