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. Why is polarization important in wireless communication using antennas?

2 / 30

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

3 / 30

3. A plane wave strikes a flat surface at incidence. If law of reflection holds, what is the reflected angle?

4 / 30

4. Holography is an application of:

5 / 30

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

6 / 30

6. Which condition is true for pressure variations at the closed end of an organ pipe?

7 / 30

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

8 / 30

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

9 / 30

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

10 / 30

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

11 / 30

11. Which type of polarization is used in most LCD displays?

12 / 30

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

13 / 30

13. A diffraction grating works on the principle of:

14 / 30

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

15 / 30

15. Which device in spectroscopy uses dispersion for wavelength separation?

16 / 30

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

17 / 30

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

18 / 30

18. 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.

19 / 30

19. In optical fibers, why is light confined within the core?

20 / 30

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

21 / 30

21. Two organ pipes produce 5 beats per second. If one has frequency 320 Hz, what is the possible frequency of the other pipe?

22 / 30

22. For a wave with dispersion relation , what are its phase and group velocities?

23 / 30

23. For a point source in 2D, what is the relation between rays and wavefronts?

24 / 30

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

25 / 30

25. In a standing wave, what are nodes?

26 / 30

26. Two waves are given as and . Find resultant amplitude.

27 / 30

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

28 / 30

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

29 / 30

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

30 / 30

30. A closed organ pipe resonates in its fundamental mode at 200 Hz. If speed of sound is , find the length of the pipe.

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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. If the time period of a wave is 0.02 s, what is its frequency?

2 / 50

2. Which device in spectroscopy uses dispersion for wavelength separation?

3 / 50

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

4 / 50

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

5 / 50

5. In steel, the speed of sound is approximately:

6 / 50

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

7 / 50

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

8 / 50

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

9 / 50

9. In the wave equation, the term represents:

10 / 50

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

11 / 50

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

12 / 50

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

13 / 50

13. A closed organ pipe of length produces fundamental frequency. If speed of sound is , calculate the frequency.

14 / 50

14. If the speed of sound in oxygen is 320 m/s and in hydrogen it is 1280 m/s, the ratio of their speeds is approximately:

15 / 50

15. Why can longitudinal waves propagate in fluids but transverse waves cannot?

16 / 50

16. Which type of polarization is used in most LCD displays?

17 / 50

17. Which condition is true for pressure variations at the closed end of an organ pipe?

18 / 50

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

19 / 50

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

20 / 50

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

21 / 50

21. Why do optical instruments like spectrometers use diffraction gratings?

22 / 50

22. Which parameter describes the number of complete oscillations of a wave per unit time?

23 / 50

23. A light ray strikes a mirror at with the surface. What is the angle of incidence with respect to the normal?

24 / 50

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

25 / 50

25. What is a waveguide?

26 / 50

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

27 / 50

27. Which of the following is a direct example of temporal dispersion?

28 / 50

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

29 / 50

29. The speed of sound in hydrogen at STP is approximately:

30 / 50

30. A non-dispersive wave has the property that:

31 / 50

31. The speed of sound in air at room temperature is approximately:

32 / 50

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

33 / 50

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

34 / 50

34. Two sound waves of amplitude 5 units each interfere destructively. What is the resultant amplitude?

35 / 50

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

36 / 50

36. Which of the following is NOT a property of a wave?

37 / 50

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

38 / 50

38. In reflection of waves from a plane surface:

39 / 50

39. The apparent redshift of light from distant galaxies is explained by which effect?

40 / 50

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

41 / 50

41. The condition for destructive interference in terms of path difference is:

42 / 50

42. Which physical quantity remains unchanged for a wave when it passes from one medium to another?

43 / 50

43. A string of length has mass . If tension is , find wave speed.

44 / 50

44. Why is mode analysis important in waveguides?

45 / 50

45. The group velocity of a wave packet is defined as:

46 / 50

46. A longitudinal wave travels in brass (density = 8500 kg/m³, Young’s modulus = ). Find wave speed.

47 / 50

47. Which principle mathematically relates rays and wavefronts in geometrical optics?

48 / 50

48. What is a ray in wave physics?

49 / 50

49. For an open organ pipe of length , with sound speed , what is the fundamental frequency?

50 / 50

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

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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

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Roshan

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Jodan JS

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