Jump to a section

Physics - Waves and Sound

Practise 43 MHT-CET (PCB) previous year questions on Waves and Sound, compiled from papers in 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty MHT-CET (PCB) tests.

Waves and Sound has been asked in 1 of the 1 years of MHT-CET (PCB) papers analysed (2026), with 43 questions in all. 35% of them were easy, 65% moderate and 0% tough. Most of its questions came from 2026, with 43 questions that year. In 2026 it had 43 questions across 11 papers, about 3.9 per paper.

The chapter's 8 topics are not weighted equally: Vibration of String (8 questions, 19%), Organ Pipe (Vibration of Air Column) (7 questions, 16%), and Interference and Superposition of Waves (6 questions, 14%) have been asked the most.

  1. 1The source is emitting sound of frequency 'n'. A source and a listener both are moving towards each other with a speed equal to , where V is26 Apr, 2026 (M)Doppler’s Effect
  2. 2A progressive wave is given by m. On this wave, how far away are the two points having phase difference of ?26 Apr, 2026 (M)Travelling Waves
  3. 3A simple harmonic progressive wave is represented as m. At a given instant of time, the phase difference between two particles 10 m apart is26 Apr, 2026 (M)Travelling Waves
  4. 4Three waves of equal frequency having amplitudes , , arrive at a given point with successive phase difference of . The amplitude of the resu26 Apr, 2026 (M)Interference and Superposition of Waves
  5. 5Two uniform strings X and Y made of same material made to vibrate under same tension. If the second overtone of string X is equal to the thi26 Apr, 2026 (M)Vibration of String
  6. 6Two waves having same amplitude , angular frequency and propagation constant , traveling in opposite directions, have a phase difference of 25 Apr, 2026 (M)Interference and Superposition of Waves
  7. 7An organ pipe closed at one end produces overtone of an air column. It is found that air in the pipe is vibrating with nodes and antinodes. 25 Apr, 2026 (M)Organ Pipe (Vibration of Air Column)
  8. 8Identify the CORRECT statement on beats (A) The amplitude of beats is always constant. (B) Beats are produced when two waves have the same f25 Apr, 2026 (M)Beats
  9. 9The speed of the transverse wave on the stretched string under tension is . If the tension in the string is increased by , the speed of the 25 Apr, 2026 (M)Basics of Mechanical Waves
  10. 10A tuning fork produces beats per second with both, and of the stretched wire of sonometer. The frequency of fork is25 Apr, 2026 (E)Beats
  11. 11For the given wave equation , the CORRECT statement is ( where x is in metre and time t is in second.)25 Apr, 2026 (E)Travelling Waves
  12. 12A boy stands away from a high wall and claps his hands at a steady rate so that each clap coincides with the echo of the one before. If he m25 Apr, 2026 (E)Beats
  13. 13The density of oxygen is 16 times that of hydrogen. The ratio of the velocity of sound in oxygen to that in hydrogen is24 Apr, 2026 (M)Speed of Sound Waves
  14. 14Two identical straight wires are stretched so as to produce 8 beats per second when vibrating simultaneously with tensions and respectively.24 Apr, 2026 (M)Beats
  15. 15The length of a sonometer wire AB is 176 cm. Where should the two bridges be placed from end A to divide the wire into three segments whose 24 Apr, 2026 (M)Vibration of String
  16. 16A wave is represented by the equation in SI units. The expression represents a wave traveling in the24 Apr, 2026 (M)Travelling Waves
  17. 17A source of sound vibrating at frequency is rotated in a circle of radius at a constant angular speed of revolutions per second. A listener 24 Apr, 2026 (E)Doppler’s Effect
  18. 18A vibrating string of certain length under a tension resonates with a mode corresponding to the first overtone of an air column of length in24 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  19. 19Two sources of sound placed closed to each other, are emitting progressive waves given by and . An observer located near these two sources o24 Apr, 2026 (E)Interference and Superposition of Waves
  20. 20A uniform rope of length and mass hangs vertically from a rigid support. A block of mass is attached to the free end of the rope. A transver24 Apr, 2026 (E)Basics of Mechanical Waves
  21. 21A train moves towards a stationary observer with speed m/s. The train sounds a whistle and its frequency heard by the observer is . When the23 Apr, 2026 (M)Doppler’s Effect
  22. 22A pipe closed at end vibrating in the fourth overtone is in unison with the open pipe vibrating in its fourth overtone. The ratio of is { = 23 Apr, 2026 (M)Organ Pipe (Vibration of Air Column)
  23. 23A sonometer wire vibrating in two loops is in resonance with a tuning fork. If tension applied to the string is increased to 16 times the or23 Apr, 2026 (M)Vibration of String
  24. 24The displacement of a wave is given by , in SI units. This wave represents a wave23 Apr, 2026 (M)Basics of Mechanical Waves
  25. 25The walls of the hall built for music concerts should23 Apr, 2026 (E)Interference and Superposition of Waves
  26. 26The tension in a piano wire is increased by . Its frequency becomes " ", where f is the original frequency, then, the value of n is nearly23 Apr, 2026 (E)Vibration of String
  27. 27The ends of the stretched wire of length L are fixed at and . In one experiment, the displacement of the wire is and energy is . In another 23 Apr, 2026 (E)Vibration of String
  28. 28Four harmonics of equal frequencies and equal intensities have phase angles . When they are superimposed, the intensity of the resultant wav23 Apr, 2026 (E)Interference and Superposition of Waves
  29. 29A source of sound emitting a note of frequency is approaching a stationary listener. If the frequency of the note heard by the listener , th22 Apr, 2026 (M)Doppler’s Effect
  30. 30The ratio of frequencies of the second overtone produced by an open pipe to that of closed pipe having the same length is22 Apr, 2026 (M)Organ Pipe (Vibration of Air Column)
  31. 31Two copper wires of radii and ( ) are subjected to same tension and are plucked. Tansverse waves set up will22 Apr, 2026 (M)Basics of Mechanical Waves
  32. 32Three tuning forks A, B and C have respective frequencies , and related as and . When A and C are sounded together 5 beats are heard per sec22 Apr, 2026 (M)Beats
  33. 33If two waves and are superimposed on each other, then the resultant amplitude due to superposition of waves is22 Apr, 2026 (E)Interference and Superposition of Waves
  34. 34In a resonance tube experiment, three successive resonances are produced by adjusting the air column of the tube in the ratio . If the frequ22 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  35. 35In the context of the Doppler effect in sound, which statement is true regarding the wave speed in the medium?22 Apr, 2026 (E)Doppler’s Effect
  36. 36A transverse wave is described by the equation . The ratio of maximum particle velocity to wave velocity is21 Apr, 2026 (M)Travelling Waves
  37. 37A hollow pipe of length 0.8 m is closed at one end. At its open end a 0.5 m long uniform string is vibrating in fourth harmonic, and it reso21 Apr, 2026 (M)Vibration of String
  38. 38An object of specific gravity is hung from a thin steel wire. The fundamental frequency for the transverse stationary waves is 300 Hz. The o21 Apr, 2026 (M)Vibration of String
  39. 39A sound wave travels from a region of air at into a region at . What is the ratio of the wavelengths ( ), if the frequency remains constant?21 Apr, 2026 (M)Speed of Sound Waves
  40. 40Which one of the following statements is true?21 Apr, 2026 (E)Basics of Mechanical Waves
  41. 41A string fixed at both the ends, forms a standing wave with node separation of . If the velocity of the wave on the string is , then the fre21 Apr, 2026 (E)Vibration of String
  42. 42An organ pipe closed at one end has vibrating air column in its first overtone and another pipe open at both ends has vibrating air column i21 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  43. 43In a pipe closed at one end, air column is vibrating in its third overtone. The air column has21 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)

Frequently Asked Questions

1.How many questions are available for Waves and Sound?

This chapter includes 43 questions compiled from MHT-CET (PCB) papers in 2026.

2.Are these questions only from MHT-CET (PCB), or from other exams too?

These are MHT-CET (PCB) questions specifically for the Waves and Sound chapter. Questions from other exams like NEET or AIIMS are organised separately under their respective exam sections.

3.Is Waves and Sound an important chapter for MHT-CET (PCB) Physics?

Waves and Sound has appeared in 1 of the 1 year of MHT-CET (PCB) papers covered here, with 43 questions across 11 papers - about 4 per paper it appears in.

4.What is the difficulty level of Waves and Sound questions in MHT-CET (PCB)?

Of the 43 questions analysed for this chapter, 35% are easy, 65% moderate and 0% tough. 2026 had the most, with 43 questions.

5.Which topics in Waves and Sound should I focus on?

These topics have carried the most weightage in Waves and Sound:

  • Vibration of String - 8 questions (19%)
  • Organ Pipe (Vibration of Air Column) - 7 questions (16%)
  • Interference and Superposition of Waves - 6 questions (14%)
6.Is Waves and Sound's weightage in MHT-CET (PCB) going up or down?

Across all 11 papers analysed, Waves and Sound has averaged about 3.9 questions per paper. In 2026, that average has stayed about the same, at about 3.9 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.