Class 11 Physics: Waves Online Test | Exam Bashed Mock Test
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Class 11 Physics — Chapter 15: Waves Online Test

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Class 11 Physics: Waves Online Test (Paper 1)

Welcome to Paper 1! This is your foundation to build confidence and get you ready to tackle the challenges ahead.

  • Total Questions: 20
  • Time Allotted: 30 minutes
  • Passing Score: 40%
  • Randomization: No
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 20

1. A wave packet has a central wavelength and wave speed . Find the central frequency.

2 / 20

2. A diffraction grating gives first-order maximum at angle for light of wavelength 600 nm. Find grating spacing .

3 / 20

3. A closed organ pipe of length resonates with sound speed . What are first three harmonics?

4 / 20

4. In the case of a point source emitting waves, the wavefronts are:

5 / 20

5. Why is polarization important in LCD technology?

6 / 20

6. A wave has frequency and wavelength . What is its speed?

7 / 20

7. A wave strikes a barrier at incidence. What is the reflection angle?

8 / 20

8. A tuning fork of 512 Hz produces 6 beats per second with another fork. What are the possible frequencies of the second fork?

9 / 20

9. A string wave has speed and frequency . Find its wavelength.

10 / 20

10. A sound wave in water has speed and frequency . Find its wavelength.

11 / 20

11. A longitudinal wave is produced in a medium with density , speed , displacement amplitude , and angular frequency . Find the pressure amplitude.

12 / 20

12. A progressive wave is expressed as . Find its speed.

13 / 20

13. In a steel rod, Young’s modulus is , and density is . Find speed of longitudinal waves.

14 / 20

14. An aluminum rod has density and Young’s modulus . Find wave speed.

15 / 20

15. An electromagnetic wave has frequency . What is its wavelength in vacuum?

16 / 20

16. A string wave is given by . What is its frequency?

17 / 20

17. In spatial dispersion, what determines the angular separation of different colors in a prism?

18 / 20

18. A rectangular waveguide has dimensions . Find cutoff frequency of dominant mode TE (take ).

19 / 20

19. For a rectangular waveguide of dimensions , compute cutoff frequency of TE mode.

20 / 20

20. A plane-polarized light of intensity passes through an analyzer at to the plane of polarization. Find transmitted intensity.

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Class 11 Physics: Waves Online Test (Paper 2)

Welcome to Paper 2! You’ve mastered the basics, and now it’s time to test your understanding with a more challenging set of questions.

Get new questions on each attempt

  • Total Questions: 30
  • Time Allotted: 45 minutes
  • Passing Score: 50%
  • Randomization: Yes
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. A wave has and . Find the polarization.

2 / 30

2. How do geologists use seismic wave reflections and refractions?

3 / 30

3. Which type of waveguide is more efficient for high-power transmission?

4 / 30

4. For the same medium (), find phase velocity.

5 / 30

5. Which wavefront is produced when a convex lens is illuminated by a point source at its focus?

6 / 30

6. Which optical device uses birefringence to control polarization states?

7 / 30

7. A wave is described by . Find wave speed.

8 / 30

8. A guitar string vibrates at 440 Hz. A tuning fork of 444 Hz is struck simultaneously. What beat frequency is heard?

9 / 30

9. Which mathematical form represents the one-dimensional wave equation?

10 / 30

10. An EM wave has horizontal and vertical components: , . What is the polarization of the wave?

11 / 30

11. Why is polarization important in LCD technology?

12 / 30

12. Which property do transverse and longitudinal waves NOT share in common?

13 / 30

13. A copper rod has Young’s modulus and density . Find speed of longitudinal waves.

14 / 30

14. A progressive wave is described as:

15 / 30

15. A train moves towards an observer at , blowing a whistle of . If speed of sound = , what frequency does observer hear?

16 / 30

16. The time between successive beats is called:

17 / 30

17. If beat frequency is 10 Hz, what is the time between two successive maxima?

18 / 30

18. Which of the following is NOT a waveguide type?

19 / 30

19. Why does violet light deviate more than red light in a prism?

20 / 30

20. Why is polarization used in optical isolators in communication systems?

21 / 30

21. A linearly polarized wave at has an electric field amplitude of . Find the horizontal and vertical components.

22 / 30

22. Which of the following is an example of dispersion in acoustic media?

23 / 30

23. Which statement best describes the role of Doppler effect in astronomy?

24 / 30

24. In the same medium (), what is the group velocity at ?

25 / 30

25. For the same medium , find phase velocity at .

26 / 30

26. In medical Doppler imaging, why is ultrasound (instead of audible sound) used?

27 / 30

27. Why are surface seismic waves often most destructive during earthquakes?

28 / 30

28. For a wave with dispersion relation , find phase and group velocities at .

29 / 30

29. If the beat period is 0.25 s, what is the beat frequency?

30 / 30

30. Seismic S-waves are:

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Class 11 Physics: Waves Online Test (Paper 3)

Welcome to Paper 3! You’ve warmed up—now it's time to step up your game and conquer the challenge with tougher questions!

Earn a certificate upon passing

Get new questions with every attempt

  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 50

1. A plane-polarized light of intensity passes through an analyzer at to the plane of polarization. Find transmitted intensity.

2 / 50

2. Which of the following best explains why electromagnetic waves can travel through space?

3 / 50

3. A longitudinal sound wave strikes a rigid wall. What happens to compressions and rarefactions on reflection?

4 / 50

4. A closed organ pipe of length resonates with sound speed . What are first three harmonics?

5 / 50

5. A transverse wave is represented as . If it reflects at a fixed end, what will be the equation of the reflected wave?

6 / 50

6. A car moving at sounds a horn of frequency . An observer at rest ahead of the car hears the sound. Speed of sound = . Find observed frequency.

7 / 50

7. A beam of unpolarized light passes through two polarizers at to each other. Find the transmitted intensity relative to the incident intensity .

8 / 50

8. Which of the following properties distinguishes mechanical transverse waves from electromagnetic waves?

9 / 50

9. In a rectangular waveguide, what do TE and TM modes stand for?

10 / 50

10. A radio station broadcasts at . Find the wavelength of these waves in air.

11 / 50

11. Which seismic waves are longitudinal in nature?

12 / 50

12. Two tuning forks have frequencies 256 Hz and 260 Hz. What is the beat frequency produced?

13 / 50

13. If two waves of amplitude interfere and produce beats, what is the maximum possible amplitude of the resultant wave?

14 / 50

14. If rays from a distant source are nearly parallel, the corresponding wavefront is:

15 / 50

15. Which of the following is an application of Doppler effect in radar technology?

16 / 50

16. In a plane wave, what is the relation between rays and wavefronts?

17 / 50

17. In water waves produced by dropping a stone into a pond, what kind of wavefronts are observed?

18 / 50

18. Which optical phenomenon in CDs/DVDs demonstrates diffraction?

19 / 50

19. Destructive interference occurs when:

20 / 50

20. A light pulse at wavelength travels through fiber with dispersion coefficient . For over 50 km, calculate pulse broadening.

21 / 50

21. In a pipe closed at one end, what kind of reflection occurs at the closed end for longitudinal sound waves?

22 / 50

22. The standard one-dimensional wave equation is:

23 / 50

23. The Doppler effect refers to:

24 / 50

24. A circular waveguide has radius . Find cutoff wavelength for TE mode ().

25 / 50

25. What is diffraction of waves?

26 / 50

26. A circular waveguide has radius . Find cutoff frequency of TE mode (use ).

27 / 50

27. In linear polarization, how does the electric field vector behave?

28 / 50

28. A weather radar at measures radial wind via Doppler shift. For wind towards the radar at , find (use backscatter formula ).

29 / 50

29. A light ray is incident at on a glass slab with refractive index . Find angle of refraction.

30 / 50

30. If two sound sources produce beats with period 0.2 s, how many beats are heard in 2 seconds?

31 / 50

31. A Gaussian wave packet has central frequency and bandwidth . What is minimum time duration?

32 / 50

32. Which of the following is an example of spatial dispersion?

33 / 50

33. Optical fibers are considered what type of waveguide?

34 / 50

34. What happens to the speed of a wave on a string if tension is quadrupled while mass per unit length remains the same?

35 / 50

35. A source emits sound at . An observer moves towards the source at . Speed of sound = . Find observed frequency.

36 / 50

36. A wave has wavelength and speed . Find its frequency.

37 / 50

37. A wave has wavelength and speed . Find its frequency.

38 / 50

38. What does the superposition principle state about waves?

39 / 50

39. A wave has components , . What is the polarization?

40 / 50

40. In fiber-optic communication, why is polarization management important?

41 / 50

41. The time between successive beats is called:

42 / 50

42. A string wave is given by . What is its frequency?

43 / 50

43. If two waves with displacements and overlap, what is the resultant displacement?

44 / 50

44. A train moving at sounds a whistle of . An observer moves towards the train at . Speed of sound = . Find the observed frequency.

45 / 50

45. A wire of length has mass . If tension is , find wave speed.

46 / 50

46. Which statement correctly distinguishes between longitudinal and transverse waves?

47 / 50

47. Calculate the speed of sound in air at pressure , density , and .

48 / 50

48. In medical Doppler imaging, why is ultrasound (instead of audible sound) used?

49 / 50

49. Which type of fiber is used for long-distance, high-speed communication?

50 / 50

50. A string is fixed at both ends. Which boundary condition must be satisfied?

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Class 11 Physics — Chapter 15: Waves Online Test

The Waves Online Test for Class 11 Physics helps students understand one of the most fascinating and high-scoring chapters in mechanics — the study of wave motion. Waves are everywhere: in sound, light, and even earthquakes. This chapter teaches how energy travels without transferring matter, and this MCQ-based online test ensures you grasp these core ideas through practical, exam-style questions.

The test is based on the NCERT Class 11 Physics Chapter 15 — Waves and follows the latest CBSE pattern. It includes multiple-choice questions from every key topic such as transverse and longitudinal waves, speed of sound, Doppler effect, superposition, beats, and stationary waves. Each paper is auto-evaluated and provides instant results with answer review, helping you analyze your performance and strengthen weak areas.

The Waves Online Test helps you connect classroom theory with real-world applications like the production of sound, resonance in musical instruments, and Doppler effect in astronomy. Each question is created to improve your understanding of formulas and physical interpretation. After each attempt, you can review your score, correct answers, and retake the paper for better performance.

About this Online Test

The Chapter 15 — Waves Online Test consists of three difficulty-based papers. Each paper tests your conceptual depth and numerical accuracy progressively.

  • Paper 1 — Concept Foundation: 20 questions · 30 min · Pass ≥ 40%
  • Paper 2 — Mixed Practice: 30 questions · 45 min · Pass ≥ 50% · Random new questions each attempt
  • Paper 3 — Advanced Challenge: 50 questions · 75 min · Pass ≥ 70% · Certificate available on passing

Papers 2 and 3 refresh with new question sets every time you retake them, while Paper 1 remains fixed for concept review. All tests include automatic grading, time tracking, and complete answer explanations after submission.

Key Topics Covered (Waves)

  • Introduction to wave motion
  • Transverse and longitudinal waves
  • Displacement, amplitude, frequency, and wavelength
  • Speed of wave on a stretched string
  • Principle of superposition of waves
  • Beats and interference
  • Stationary (standing) waves
  • Resonance and natural frequency
  • Doppler effect and its real-life applications

Why You Should Take This Test

Waves is one of the most conceptually rich and formula-based chapters. This online test helps you practice a variety of questions that reinforce your theoretical and mathematical understanding. It helps you:

  • Revise all formulas related to wave speed, frequency, and wavelength
  • Understand wave superposition and resonance clearly
  • Improve accuracy with conceptual and numerical MCQs
  • Get instant score and answer analysis after submission
  • Boost your confidence for both board exams and JEE/NEET Physics

Who Should Attempt This Test

  • CBSE/NCERT Class 11 students preparing for Physics exams
  • JEE and NEET aspirants aiming to master mechanics and sound wave topics
  • Students wanting conceptual clarity in standing waves and Doppler effect
  • Teachers looking for ready-to-use online MCQ tests for practice

Preparation Tips for Chapter 15 — Waves

  • Revise the wave equation and understand how displacement varies with time and position.
  • Memorize key relations: v = fλ and v = √(T/μ) for waves on a string.
  • Practice numericals on beats, stationary waves, and Doppler shift.
  • Study the phase difference and nodes–antinodes formation clearly.
  • Attempt Paper 1 for formula check, Paper 2 for mixed concepts, and Paper 3 for full exam simulation.

Before You Start

  • Use updated Chrome or Edge browser for a smooth test experience.
  • Ensure a stable internet connection during the test.
  • Do not refresh or close the browser tab while attempting.

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Delen-Do

Love how you bring out the best in people through your incredible work

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Roshan

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Jodan JS

This message 💫 came at exactly right time for me. Your timing is always perfect. Thank you.

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