Physics - Oscillations
Practise 22 WBJEE previous year questions on Oscillations, compiled from papers spanning 2010 to 2025. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty WBJEE tests.
Oscillations has been asked in 12 of the 18 years of WBJEE papers analysed (2009–2026), with 22 questions in all. 32% of them were easy, 45% moderate and 23% tough. Most of its questions came from 2011, with 4 questions that year. In the last three years (2024–2026) it had 2 questions across 3 papers, about 0.7 per paper.
The chapter's 4 topics are not weighted equally: Simple Harmonic Motion (13 questions, 59%), Time Period and Frequency (7 questions, 32%), and Superposition of S.H.M’s and Resonance (1 question, 5%) have been asked the most. Simple Harmonic Motion has also led over the last five years, with 3 questions. Time Period and Frequency has produced the most tough questions (3).
- 1The variation of displacement with time of a simple harmonic motion (SHM) for a particle of mass is represented by . The maximum acceleratio2025Simple Harmonic Motion
- 2A simple pendulum is taken at a place where its distance from the earth's surface is equal to the radius of the earth. Calculate the time pe2025Applications of SHM
- 3In a simple harmonic motion, let \( {f}\) be the acceleration and \( {T}\) be the time period. If \(x\) denotes the displacement, then |fT| 2023Simple Harmonic Motion
- 4A particle is subjected to two simple harmonic motions in the same direction having equal amplitudes and equal frequency. If the resultant a2022Simple Harmonic Motion
- 5The potential energy of a particle of mass moving along -axis is given by where is in metres and is a constant. Which of the following is/ar2021Simple Harmonic Motion
- 6In case of a simple harmonic motion, if the velocity is plotted along the -axis and the displacement (from the equilibrium position) is plot2018Simple Harmonic Motion
- 7The bob of a pendulum of mass , suspended by an inextensible string of length as shown in the figure carries a small charge . An infinite ho2018Time Period and Frequency
- 8The velocity of a particle executing a simple harmonic motion is , when its distance from the equilibrium position is and its velocity is wh2017Simple Harmonic Motion
- 9A unit negative charge with mass resides at the mid-point of the straight line of length adjoining two fixed charges of magnitude each. If i2017Simple Harmonic Motion
- 10A particle vibrating simple harmonically hat an acceleration of when it is at distance of from the mean position, lt time period is2016Simple Harmonic Motion
- 11When a particle executing SHM oscillates with a frequency , then the kinetic energy of the particle2014Time Period and Frequency
- 12The displacement of a particle in a periodic motion is given by . This displacement may be considered as the result of superposition of inde2014Superposition of S.H.M's and Resonance
- 13A small mass , attached to one end of a spring with a negligible mass and an unstretched length , executes virtual oscillation with angular 2013Simple Harmonic Motion
- 14Two simple harmonic motions are given by and The ratio of the amplitudes of first and second motion and the phase difference between them ar2013Simple Harmonic Motion
- 15A particle of mass and charge is at rest at the mid point between two other fixed similar charges each of magnitude placed a distance apart.2013Time Period and Frequency
- 16What is the phase difference between two simple harmonic motions represented by and2012Simple Harmonic Motion
- 17Two identical springs are connected to mass \( {m}\) as shown \(( {k}=\) spring constant). If the period of the configuration in (a) is \(2 2011Time Period and Frequency
- 18A particle of mass \(m\) is located in a one dimensional potential field where potential energy is given by : \( {V}( {x})= {A}(1- {px})\), 2011Time Period and Frequency
- 19The period of oscillation of a simple pendulum of length \(l\) suspended from the roof of a vehicle, which moves without friction down an in2011Time Period and Frequency
- 20The displacement of a particle in S.H.M. varies according to the relation \(x=4( t+ {t})\). The amplitude of the particle is2011Simple Harmonic Motion
- 21A particle of mass is attached to three identical massless springs of spring constant ' ' as shown in the figure. The time period of vertica2010Time Period and Frequency
- 22A particle is executing linear simple harmonic motion of amplitude A. At what displacement is the energy of the particle half potential and 2010Simple Harmonic Motion
Frequently Asked Questions
1.How many questions are available for Oscillations?
This chapter includes 22 questions compiled from WBJEE papers spanning 2010 to 2025.
2.Are these questions only from WBJEE, or from other exams too?
These are WBJEE questions specifically for the Oscillations chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Oscillations an important chapter for WBJEE Physics?
Oscillations has appeared in 12 of the 18 years of WBJEE papers covered here, with 22 questions across 12 papers - about 2 per paper it appears in.
4.What is the difficulty level of Oscillations questions in WBJEE?
Of the 22 questions analysed for this chapter, 32% are easy, 45% moderate and 23% tough. 2011 had the most, with 4 questions.
5.Which topics in Oscillations should I focus on?
These topics have carried the most weightage in Oscillations:
- Simple Harmonic Motion - 13 questions (59%)
- Time Period and Frequency - 7 questions (32%)
- Superposition of S.H.M’s and Resonance - 1 question (5%)
- Time Period and Frequency has produced the most tough questions (3).
6.Is Oscillations's weightage in WBJEE going up or down?
Across all 12 papers analysed, Oscillations has averaged about 1.8 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.