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Physics - Waves and Sound

Practise 439 MHTCET previous year questions on Waves and Sound, compiled from papers spanning 2007 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty MHTCET tests.

Waves and Sound has been asked in 16 of the 17 years of MHTCET papers analysed (2007–2026), with 439 questions in all. 34% of them were easy, 56% moderate and 10% tough. Most of its questions came from 2026, with 66 questions that year. In the last three years (2024–2026) it had 193 questions across 59 papers, about 3.3 per paper.

The chapter's 10 topics are not weighted equally: Organ Pipe (Vibration of Air Column) (101 questions, 23%), Vibration of String (88 questions, 20%), and Basics of Mechanical Waves (54 questions, 12%) have been asked the most. Over the last five years the most frequent topics have been Vibration of String (69), Organ Pipe (Vibration of Air Column) (58), and Doppler’s Effect (35). Organ Pipe (Vibration of Air Column) has produced the most tough questions (15).

  1. 1A train is moving towards a stationary observer with speed m/s. A train sounds a whistle of frequency Hz. If the speed of sound is m/s, the 20 Apr, 2026 (M)Doppler’s Effect
  2. 2The ratio of the speed of sound in helium gas to that in nitrogen gas at K is ( Ratio of specific heats for helium is and that for nitrogen 20 Apr, 2026 (M)Speed of Sound Waves
  3. 3A tuning fork of frequency ' ' is held near the open end of a tube which is dipped in water and length of the tube is adjusted until resonan20 Apr, 2026 (M)Organ Pipe (Vibration of Air Column)
  4. 4The 'Loudness' and 'Pitch' of sound respectively are the human perception to20 Apr, 2026 (M)Properties of Sound Waves
  5. 5A wire of length ' ', diameter ' ', density of material ' ' is under tension ' ' has fundamental frequency of vibration ' '. Another wire of20 Apr, 2026 (M)Vibration of String
  6. 6The equation of a wave on a string of linear mass density is m. The tension in the string is20 Apr, 2026 (E)Basics of Mechanical Waves
  7. 7Two waves are represented as and The path difference between two waves is20 Apr, 2026 (E)Travelling Waves
  8. 8Two monoatomic ideal gases '1' and '2' of molecular masses and respectively are enclosed in separate containers kept at the same temperature20 Apr, 2026 (E)Speed of Sound Waves
  9. 9Two sound waves each of wavelength and same amplitude interfere at point . If the path difference is , the amplitude of the resultant wave a20 Apr, 2026 (E)Interference and Superposition of Waves
  10. 10Which one of the following statements regarding pitch of sound is 'WRONG' ? (A) Pitch refers to sharpness of sound. (B) Tone refers to the s19 Apr, 2026 (M)Properties of Sound Waves
  11. 11A set of tuning forks is arranged in a series of increasing frequencies. Each fork produces ' ' beats per second with the preceding fork and19 Apr, 2026 (M)Beats
  12. 12A tuning fork gives beats per second with a cm length of sonometer wire. If the length of the wire is shortened by cm, the number of beats i19 Apr, 2026 (M)Vibration of String
  13. 13The third overtone of a closed pipe of length ' ' has the same frequency as the third overtone of the open pipe of length ' '. Both the pipe19 Apr, 2026 (M)Organ Pipe (Vibration of Air Column)
  14. 14A body sends a wave mm long through medium P and m long in medium Q. If velocity of the wave in medium P is , the velocity of wave in medium19 Apr, 2026 (E)Travelling Waves
  15. 15The equation of a progressive wave is given by where is in , in metre and in second. The ratio of the maximum particle velocity to the veloc19 Apr, 2026 (E)Travelling Waves
  16. 16Two waves of same frequency ( ) approaching each other with same velocity of m/s interfere. The distance between two consecutive antinodes i19 Apr, 2026 (E)Stationary waves
  17. 17For stationary wave, cm, the distance between a node and the successive antinode is19 Apr, 2026 (E)Stationary waves
  18. 18In a resonance tube open at one end, the end correction is cm. If the shortest length of resonating air column with a tuning fork is cm, the19 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  19. 19The number of waves counted by an observer on the sea-coast in one minute is 54. If the wavelength of the waves is then the velocity of the 18 Apr, 2026 (M)Travelling Waves
  20. 20The lengths of the two pipes open at both ends are L and . If they are sounded together, the beat frequency will be ( = velocity of sound in18 Apr, 2026 (M)Organ Pipe (Vibration of Air Column)
  21. 21Fifth overtone of an open pipe of length is in unison with the fifth overtone of the pipe closed at one end of length . The ratio to is18 Apr, 2026 (M)Organ Pipe (Vibration of Air Column)
  22. 22Two sources of sound are emitting progressive waves and . The sources are placed close to each other. The number of beats heard per second a18 Apr, 2026 (M)Beats
  23. 23A person standing between two parallel cliffs fires a gun and hears two echoes, first echo after 1 second and second echo after 3 second. Th18 Apr, 2026 (E)Beats
  24. 24A wire of length 'L' and linear density 'm' is stretched between two rigid supports with tension 'T'. It is observed that wire resonates in 18 Apr, 2026 (E)Vibration of String
  25. 25The fundamental frequency ' ' of the tuning fork is 288 Hz, it will not resonate with the frequency18 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  26. 26In an organ pipe closed at one end produces a fundamental note of frequency ' '. The pipe is cut into two pipes of equal length. The fundame18 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  27. 27The enclosed air inside a closed box of rigid walls has pressure . The density of air inside this box is constant. On heating the gas, the p17 Apr, 2026 (M)Speed of Sound Waves
  28. 28Out of the following musical instruments which is ' NOT ' a percussion instrument?17 Apr, 2026 (M)Beats
  29. 29In case of stationary wave pattern, which of the following statement is CORRECT ?17 Apr, 2026 (M)Stationary waves
  30. 30A and B are two wires whose fundamental frequencies are 256 Hz and 382 Hz respectively. When third harmonic of A and the second harmonic of 17 Apr, 2026 (M)Vibration of String
  31. 31Two sounding waves send waves at certain temperature in air of wavelength 50 cm and 50.5 cm repectively. The frequency of sources differ by 17 Apr, 2026 (E)Basics of Mechanical Waves
  32. 32In a pipe closed at one end, air column is vibrating in the fourth overtone so the vibrating air column has ' ' nodes and ' ' antinodes. The17 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  33. 33The beats are produced when there is a superposition of two sound waves which will have17 Apr, 2026 (E)Beats
  34. 34In a sonometer experiment, the fundamental frequency of vibration of wire is ' ' when wire is stretched by hanging a metal bob. If the bob i17 Apr, 2026 (E)Vibration of String
  35. 35The equation of wave motion is where x is in metre and time in second. The velocity of the wave is16 Apr, 2026 (M)Basics of Mechanical Waves
  36. 36When the observer moves towards a stationary source with velocity ' ', the apparent frequency of the emitted note is ' '. When the observer 16 Apr, 2026 (M)Doppler’s Effect
  37. 37When a sonometer wire vibrates in the third overtone, the number of antinodes and nodes formed on the wire are respectively16 Apr, 2026 (M)Vibration of String
  38. 38A progressive wave of frequency 50 Hz is travelling with velocity 350 m/s through a medium. The change in phase at given time interval of 0.16 Apr, 2026 (M)Travelling Waves
  39. 39A person observes two moving trains. 'A' reaching the station and 'B' leaving the station with equal speed of 30m/s. If both trains emit sou16 Apr, 2026 (E)Doppler’s Effect
  40. 40When open pipe is closed from one end then third overtone of closed pipe is higher in frequency by 150Hz than second overtone of open pipe. 16 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  41. 41Two waves and are propagating along the same direction. The number of beats produced per second are16 Apr, 2026 (E)Beats
  42. 42An air column in a pipe which is closed at one end will be in resonance with a vibrating tuning fork of frequency 415 Hz for various vibrati16 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  43. 43The fundamental frequency of sonometer wire is Hz for some length and tension. If the length is increased by by keeping the tension same, th15 Apr, 2026 (M)Vibration of String
  44. 44A sonometer wire resonates with antinodes between the two bridges for a given tuning fork when kg mass is suspended from the wire. Using sam15 Apr, 2026 (M)Vibration of String
  45. 45A Pipe open at one end has length m. At the open end of the tube a string m long is vibrating in its first overtone and resonates with funda15 Apr, 2026 (M)Vibration of String
  46. 46A wire is under tension of kg wt and a wave is travelling through it with some speed. Tension in the wire is so increased that the wave trav15 Apr, 2026 (M)Basics of Mechanical Waves
  47. 47When open pipe is closed from one end then second overtone of closed pipe is higher in frequency by 100 Hz than first overtone of open pipe.15 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  48. 48To increase the frequency of transverse oscillations of a stretched string by 40%, the tension must be increased by15 Apr, 2026 (E)Vibration of String
  49. 49A pipe open at both ends has a fundamental frequency 'f' in air. The pipe is dipped in water, so that length of pipe is in water, Now the fu15 Apr, 2026 (E)Organ Pipe (Vibration of Air Column)
  50. 50A simple harmonic progressive wave is represented by . The distance between two points on the wave at a phase difference of radian is15 Apr, 2026 (E)Travelling Waves

Frequently Asked Questions

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

This chapter includes 439 questions compiled from MHTCET papers spanning 2007 to 2026.

2.Are these questions only from MHTCET, or from other exams too?

These are MHTCET questions specifically for the Waves and Sound chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Waves and Sound an important chapter for MHTCET Physics?

Waves and Sound has appeared in 16 of the 17 years of MHTCET papers covered here, with 439 questions across 106 papers - about 4 per paper it appears in.

4.What is the difficulty level of Waves and Sound questions in MHTCET?

Of the 439 questions analysed for this chapter, 34% are easy, 56% moderate and 10% tough. 2026 had the most, with 66 questions.

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

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

  • Organ Pipe (Vibration of Air Column) - 101 questions (23%)
  • Vibration of String - 88 questions (20%)
  • Basics of Mechanical Waves - 54 questions (12%)
  • Organ Pipe (Vibration of Air Column) has produced the most tough questions (15).
6.Is Waves and Sound's weightage in MHTCET going up or down?

Across all 106 papers analysed, Waves and Sound has averaged about 4.1 questions per paper. In the last three years (2024–2026), that average has fallen, at about 3.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.