Class 11 Physics: Waves Online Test | Exam Bashed Mock Test

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. The standard one-dimensional wave equation is:

2 / 30

2. The fundamental relation between wave speed , frequency , and wavelength is:

3 / 30

3. Which function is a solution of the one-dimensional wave equation?

4 / 30

4. Two waves of frequencies 250 Hz and 255 Hz interfere. What is the beat frequency?

5 / 30

5. What is the primary characteristic that defines a wave?

6 / 30

6. The general equation of a progressive wave moving in the +x direction is:

7 / 30

7. The H-alpha line () from a galaxy receding at . Find observed wavelength (non-relativistic).

8 / 30

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

9 / 30

9. The Doppler effect refers to:

10 / 30

10. Which of the following is NOT a fundamental characteristic of a wave?

11 / 30

11. Which of the following wave equations represents a wave traveling in the –x direction?

12 / 30

12. What is the main idea of Fourier analysis in wave physics?

13 / 30

13. Which of the following is a common example of a transverse wave?

14 / 30

14. Which function is NOT a valid solution of the wave equation?

15 / 30

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

16 / 30

16. What is the main limitation caused by dispersion in optical fibers?

17 / 30

17. A light ray is incident at with the normal. What is the reflection angle?

18 / 30

18. A radar transmits at 3 GHz. A car approaches at 30 m/s. What Doppler shift occurs? (Take ).

19 / 30

19. A transverse wave is represented as . If reflected at a free end, what is the reflected equation?

20 / 30

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

21 / 30

21. A star emits light at . It is receding at . Estimate observed frequency (non-relativistic).

22 / 30

22. Why are polarizers used in cameras and sunglasses?

23 / 30

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

24 / 30

24. Which type of dispersion occurs in multimode fibers because different propagation paths have different lengths?

25 / 30

25. In a pipe with both ends open, reflection of longitudinal sound waves produces:

26 / 30

26. In circular waveguides, which mode is typically dominant?

27 / 30

27. A wave has linear polarization at to the x-axis, with amplitude . Find its components.

28 / 30

28. A source of frequency approaches a stationary observer at . Speed of sound = . Find observed frequency.

29 / 30

29. A dispersive medium has . Find group velocity.

30 / 30

30. Which of the following is an example of a transverse mechanical wave?

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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!

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

Good luck! 👍

1 / 50

1. Which application of acoustics uses reflection of sound waves?

2 / 50

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

3 / 50

3. Which of the following can polarize light?

4 / 50

4. A string fixed at both ends has its third harmonic frequency at 150 Hz. What is fundamental frequency?

5 / 50

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

6 / 50

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

7 / 50

7. A tuning fork produces sound waves in air. These are classified as:

8 / 50

8. In the same wave equation , what is the wavelength?

9 / 50

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

10 / 50

10. Two instruments play together at frequencies 440 Hz and 445 Hz. How often will the loudness of sound increase per second?

11 / 50

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

12 / 50

12. Why does sound travel faster in solids than in liquids and gases?

13 / 50

13. In a plane progressive wave, the wavefront is:

14 / 50

14. Which principle allows radio signals to be received even in valleys?

15 / 50

15. A wave solution is given as . Which direction is the wave moving?

16 / 50

16. In which medium is the speed of sound least?

17 / 50

17. In a longitudinal wave, how do the particles of the medium oscillate relative to the direction of wave propagation?

18 / 50

18. A seismic P-wave travels at through Earth and has a wavelength of . What is its frequency?

19 / 50

19. An EM wave has , . What is the polarization?

20 / 50

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

21 / 50

21. What is a waveguide?

22 / 50

22. In a water wave at the surface of a pond, what type of motion do particles undergo?

23 / 50

23. Why is polarization important in wireless communication using antennas?

24 / 50

24. What determines the color of light or the pitch of sound in terms of wave characteristics?

25 / 50

25. Why are polarization filters used in 3D movie glasses?

26 / 50

26. A stationary source emits sound at 400 Hz. An observer moves towards the source at 20 m/s (speed of sound = 340 m/s). Find observed frequency.

27 / 50

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

28 / 50

28. What is temporal dispersion?

29 / 50

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

30 / 50

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

31 / 50

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

32 / 50

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

33 / 50

33. A sound wave has speed and wavelength . Find its frequency.

34 / 50

34. A hall requires reverberation time of 1.5 s. If its volume is , find total absorption required using Sabine’s formula .

35 / 50

35. A wave packet has central frequency and bandwidth . Estimate temporal width of the packet.

36 / 50

36. Astronomers use Doppler effect to measure which property of stars and galaxies?

37 / 50

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

38 / 50

38. Which of the following is a mechanical wave?

39 / 50

39. The pleasant quality of music compared to noise is due to:

40 / 50

40. Seismic S-waves are:

41 / 50

41. If the frequency of a wave is doubled but speed remains constant, what happens to its wavelength?

42 / 50

42. In Newton’s rings experiment, a dark spot at the center is observed because:

43 / 50

43. Which principle is used to detect faults in musical tuning during orchestra practice?

44 / 50

44. Diffraction is more pronounced when:

45 / 50

45. Which of the following pairs is correct for phase change upon reflection?

46 / 50

46. Which of the following devices uses waveguides in microwave engineering?

47 / 50

47. If the frequency of a wave is and its wavelength is , what is its speed?

48 / 50

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

49 / 50

49. Which type of dispersion occurs in multimode fibers because different propagation paths have different lengths?

50 / 50

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

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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

This is pure gold! So grateful you posted this 🌟

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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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