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Physics - Waves and Sound

Practise 25 Manipal (MET) previous year questions on Waves and Sound, compiled from papers spanning 2010 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty Manipal (MET) tests.

Waves and Sound has been asked in 12 of the 15 years of Manipal (MET) papers analysed (2010–2024), with 25 questions in all. 56% of them were easy, 40% moderate and 4% tough. Most of its questions came from 2010, with 5 questions that year. In the last three years (2022–2024) it had 1 question across 1 paper, about 1 per paper.

The chapter's 8 topics are not weighted equally: Vibration of String (6 questions, 24%), Basics of Mechanical Waves (4 questions, 16%), and Doppler’s Effect (4 questions, 16%) have been asked the most. Over the last five years the most frequent topics have been Basics of Mechanical Waves (1), Beats (1), and Doppler’s Effect (1). Vibration of String has produced the most tough questions (1).

  1. 1Fundamental frequency of a sonometer wire is , if the tension is made 3 times and length and diameter are also increased 3 times, what is th2024Vibration of String
  2. 2A stretched sonometer wire is in unison with a tuning fork. When length of wire is increase by , the number of beats heard per second is 5. 2021Beats
  3. 3A heavy uniform rope hangs vertically from the ceiling, with its lower end free. A disturbance on the rope travelling upwards from the lower2021Basics of Mechanical Waves
  4. 4If an observer moves towards stationary source, then the apparent frequency is given by2020Doppler’s Effect
  5. 5Standing waves are formed on a string when interference occurs between two waves having2018Vibration of String
  6. 6A string of density and area of cross-section is stretched under a tension of 20 N . When it is plucked at the mid-point, the speed of the t2017Basics of Mechanical Waves
  7. 7In a gas, two waves of wavelengths 1 m and 1.01 m are superposed and produce 10 beats in 3 s . The velocity of sound in the medium is2017Beats
  8. 8The apparent frequency of the whistle of an engine changes in the ratio as the engine passes a stationary observer. If the velocity of the s2017Doppler’s Effect
  9. 9A stationary police car sounds a siren with a frequency of 990 Hz . If the speed of sound is , an observer, driving towards the car with a s2017Doppler’s Effect
  10. 10If a wave travelling in positive -direction with , velocity and , then correct expression for the wave is2016Travelling Waves
  11. 11Fifty six tuning forks are arranged in a series such that each fork gives 6 beats per second with the preceding one. Assuming the frequency 2016Organ Pipe (Vibration of Air Column)
  12. 12The frequency of sonometer wire is , but when the weights producing the tensions are completely immersed in water, the frequency becomes and2015Vibration of String
  13. 13Equations of a stationary and a travelling waves are as follows, and . The phase difference between two points and are and respectively for 2015Travelling Waves
  14. 14A massless rod is suspended by two identical strings and of equal length. block of mass is suspended from point such that is equal to ' '. F2014Vibration of String
  15. 15An open organ pipe resonated with frequency and 2nd harmonic. Now, one end is closed and the frequency is slowly increased, then it resonate2014Vibration of String
  16. 16The speed of a wave on a string is when the tension is 120 N . The percentage increase in the tension in order to raise the wave speed by is2013Basics of Mechanical Waves
  17. 17Oxygen is 16 times heavier than hydrogen. Equal volumes of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that2012Speed of Sound Waves
  18. 18A man, standing between two cliffs, claps his hands and starts hearing a series of echoes at intervals of one second. If the speed of sound 2012Speed of Sound Waves
  19. 19A sound has an intensity of . Its intensity level in decibels is2012Properties of Sound Waves
  20. 20An open pipe is suddenly closed at one end with the result that the frequency of third harmonic of the closed pipe is termed to be higher by2011Organ Pipe (Vibration of Air Column)
  21. 21Solar radiation is2010Basics of Mechanical Waves
  22. 22Fundamental frequency of an open pipe is , Fundamental frequency when it is half filled with water is2010Organ Pipe (Vibration of Air Column)
  23. 23A sounding source of frequency 500 Hz moves towards a stationary observer with a velocity . If the velocity of sound in air is , find the fr2010Doppler’s Effect
  24. 24When the wavelength of sound changes from 1 m to 1.01 m , the number of beats heard are 4 . The velocity of sound is2010Beats
  25. 25A string fixed at both ends oscillates in 5 segments, length 10 m and velocity of wave is . What is the frequency?2010Vibration of String

Frequently Asked Questions

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

This chapter includes 25 questions compiled from Manipal (MET) papers spanning 2010 to 2024.

2.Are these questions only from Manipal (MET), or from other exams too?

These are Manipal (MET) 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 Manipal (MET) Physics?

Waves and Sound has appeared in 12 of the 15 years of Manipal (MET) papers covered here, with 25 questions across 12 papers - about 2 per paper it appears in.

4.What is the difficulty level of Waves and Sound questions in Manipal (MET)?

Of the 25 questions analysed for this chapter, 56% are easy, 40% moderate and 4% tough. 2010 had the most, with 5 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 - 6 questions (24%)
  • Basics of Mechanical Waves - 4 questions (16%)
  • Doppler’s Effect - 4 questions (16%)
  • Vibration of String has produced the most tough questions (1).
6.Is Waves and Sound's weightage in Manipal (MET) going up or down?

Across all 12 papers analysed, Waves and Sound has averaged about 2.1 questions per paper. In the last three years (2022–2024), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.