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

2 / 30

2. A microwave has wavelength . What is its frequency in vacuum?

3 / 30

3. A wave on a stretched string has amplitude , frequency , and wavelength . What is the speed of the wave?

4 / 30

4. An open pipe resonates at fundamental frequency of 170 Hz. If speed of sound = 340 m/s, what is pipe length?

5 / 30

5. For a dispersive medium with , find phase velocity at .

6 / 30

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

7 / 30

7. When a transverse wave pulse on a string is reflected at a free end, what happens to the reflected pulse?

8 / 30

8. A wave is given by . What are the values of wave number and angular frequency?

9 / 30

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

10 / 30

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

11 / 30

11. The resolving power of an optical instrument is limited due to:

12 / 30

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

13 / 30

13. For a string of length fixed at both ends, what form of solution satisfies the boundary conditions?

14 / 30

14. In sound engineering, destructive interference is used to:

15 / 30

15. What does polarization of light mean?

16 / 30

16. The time period of a wave is . What is its frequency?

17 / 30

17. The principle used in the working of noise-cancelling headphones is:

18 / 30

18. In a pipe with one end closed and one end open, reflection produces:

19 / 30

19. Why are circular waveguides commonly used in satellite communication?

20 / 30

20. A waveguide is a structure designed to:

21 / 30

21. When waves pass through a single narrow slit, what is observed on a screen?

22 / 30

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

23 / 30

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

24 / 30

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

25 / 30

25. A traffic radar operates at . The measured Doppler shift from a car is . Find the car’s speed (use ).

26 / 30

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

27 / 30

27. The time between successive beats is called:

28 / 30

28. A tuning fork of frequency 340 Hz is struck along with another producing 8 beats per second. Find possible frequencies of the second tuning fork.

29 / 30

29. In water, density is , bulk modulus . Find speed of sound.

30 / 30

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

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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. In a standing wave, what are antinodes?

2 / 50

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

3 / 50

3. A sound wave strikes a wall making an angle of with the normal. What is the angle of reflection?

4 / 50

4. Which communication problem arises mainly due to temporal dispersion?

5 / 50

5. Why is diffraction more useful in X-ray analysis than in visible light analysis of crystals?

6 / 50

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

7 / 50

7. A string of length , mass , is under tension of . Find the fundamental frequency.

8 / 50

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

9 / 50

9. A train whistle has frequency 500 Hz. If the train moves towards a stationary observer at speed 30 m/s (speed of sound = 330 m/s), what frequency is heard?

10 / 50

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

11 / 50

11. A radio station transmits waves at . What is the wavelength of these waves in air?

12 / 50

12. The wave equation is of which type?

13 / 50

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

14 / 50

14. Why does diffraction occur more easily with sound waves than with light waves?

15 / 50

15. A progressive wave is described as:

16 / 50

16. What is the relationship between rays and wavefronts?

17 / 50

17. A pipe open at both ends has length . If the speed of sound in air is , calculate its fundamental frequency.

18 / 50

18. Which phenomenon is best explained by Huygens’ principle?

19 / 50

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

20 / 50

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

21 / 50

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

22 / 50

22. A concave mirror has focal length . If an object is placed at , where is the image formed?

23 / 50

23. Which of the following describes resonance in a violin?

24 / 50

24. In acoustic dispersion, why do high-frequency sound components travel differently in some media?

25 / 50

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

26 / 50

26. Destructive interference occurs when:

27 / 50

27. A wave pulse traveling along a string is reflected from a fixed end. What happens to the reflected pulse?

28 / 50

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

29 / 50

29. In medical imaging, Doppler ultrasound is used to:

30 / 50

30. According to Huygens’ principle, why does light bend around a sharp edge?

31 / 50

31. A sound wave has a frequency of and speed . What is its wavelength?

32 / 50

32. A calcite crystal shows double images when placed over text. This phenomenon is due to:

33 / 50

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

34 / 50

34. A string is vibrating in a transverse mode with frequency and wavelength . Find the wave speed.

35 / 50

35. Which of the following is the correct order of sound speed in different media (approximate values)?

36 / 50

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

37 / 50

37. What is the condition for the minimum in single-slit diffraction?

38 / 50

38. An ambulance siren of frequency 700 Hz moves away from an observer at 25 m/s. Speed of sound = 350 m/s. Find observed frequency.

39 / 50

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

40 / 50

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

41 / 50

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

42 / 50

42. If unpolarized light is incident on a polarizer, followed by another polarizer rotated at , what fraction of original intensity is transmitted?

43 / 50

43. Which natural phenomenon demonstrates polarization by scattering?

44 / 50

44. 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.

45 / 50

45. A progressive wave is represented as . What is the speed of this wave?

46 / 50

46. For a dispersive medium with , find phase velocity at .

47 / 50

47. The speed of sound in a medium is given by which formula?

48 / 50

48. If a wave is described by , what is its frequency?

49 / 50

49. A prism produces angular separation of between red () and violet (). If prism angle = , calculate approximate difference in refractive index ().

50 / 50

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

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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

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