NTA will shortly release the JEE Main Syllabus 2025 at jeemain.nta.ac.in. Last Year, the complete syllabus of JEE Main underwent some major changes. According to the latest syllabus guidelines, the weightage of Physics has dropped to 22.5%. Due to these changes in the syllabus, certain shifts in chapter-wise weightage have been observed. Waves and Oscillations are among such topics. It’s among the least weightage topics in JEE Main Physics Syllabus 2025. This chapter holds 1.39% weightage in the whole syllabus.
- Waves and Oscillations is a part of the General Physics section, and every year around 2-3 questions are asked from this chapter. Due to the drop in weightage, you can expect 1-2 questions in JEE Main 2025.
- Waves and Oscillations in JEE Mains Physics Syllabus 2025 covers all the basic concepts on units and measurements, fundamentals of units, dimensions etc.
Aspirants consider Waves and Oscillations as one of the Easiest Chapters in Physics for JEE Main 2025. Even though this chapter has the least weightage in the syllabus, to develop a strong foundation in physics, this particular chapter plays a pivotal role. Hence the candidates need to develop a clear understanding of this chapter. The list of most asked questions from this chapter will help the students with their preparation.
Must Check News on JEE Main Physics:
Question 1:
A particle executes simple harmonic motion with an amplitude of 4 cm. At the mean position, the velocity of the particle is 10 cm/s. The distance of the particle from the mean position when its speed becomes 5 cm/s is α cm, where alpha = ___.
(27-Jan-2024 Shift 1)
Question 2:
A particle executes simple harmonic motion between x = −A and x = +A. If the time taken by the particle to go from x = 0 to A/2 is 2 s, then the time taken by the particle in going from x = A2 to A is:
Options:
A. 3 s
B. 2 s
C. 1.5 s
D. 4 s
(25-Jan-2023 Shift 2)
Question 3:
A particle of mass 250 g executes simple harmonic motion under a periodic force F=−25x N. The particle attains a maximum speed of 4 m/s during its oscillation. The amplitude of the motion is ________ cm.
(29-Jan-2023 Shift 2)
Question 4:
A body of mass 200 g is tied to a spring of spring constant 12.5 N/m, while the other end of the spring is fixed at point O. If the body moves about O in a circular path on a smooth horizontal surface with a constant angular speed of 5 rad/s, then the ratio of extension in the spring to its natural length will be:
Options:
A. 1 : 2
B. 1 : 1
C. 2 : 3
D. 2 : 5
(24-Jan-2023 Shift 2)
Question 5:
A mass m attached to the free end of a spring executes simple harmonic motion (SHM) with a period of 1 s. If the mass is increased by 3 kg, the period of oscillation increases by one second. The value of mass m is ___ kg.
(24-Jan-2023 Shift 2)
Question 6:
The amplitude of a particle executing simple harmonic motion (SHM) is 3 cm. The displacement at which its kinetic energy will be 25% more than the potential energy is: _______ cm.
(1-Feb-2023 Shift 1)
Question 7:
A person observes two moving trains, 'A' reaching the station and 'B' leaving the station with equal speed of 30 m/s. If both trains emit sounds with a frequency of 300 Hz (speed of sound: 330 m/s), the approximate difference of frequencies heard by the person will be:
Options:
A. 33 Hz
B. 55 Hz
C. 80 Hz
D. 10 Hz
(29-Jan-2023 Shift 1)
Question 8:
Two simple harmonic waves having equal amplitudes of 8 cm and equal frequency of 10 Hz are moving along the same direction. The resultant amplitude is also 8 cm. The phase difference between the individual waves is ________ degrees.
(29-Jan-2023 Shift 1)
Question:9
A person driving a car at a constant speed of 15 m/s is approaching a vertical wall. The person notices a change of 40 Hz in the frequency of his car's horn upon reflection from the wall. The frequency of the horn is _______ Hz.
(6-Apr-2023 Shift 1)
Question:10
A guitar string of length 90 cm vibrates with a fundamental frequency of 120 Hz. The length of the string producing a fundamental frequency of 180 Hz will be ________ cm.
(8-Apr-2023 Shift 2)
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