Practice Sound RRB PYQ questions asked in various Railway Recruitment Board examinations. This page provides important previous year questions from the Sound chapter along with correct answers and clear explanations to help you prepare effectively for RRB Physics.
The Sound chapter covers important concepts such as the nature of sound waves, frequency range of sound waves, speed of sound, characteristics of sound, echo, SONAR and RADAR. These concepts are important for understanding the types of Physics questions commonly asked in Railway examinations.
Start practicing Sound RRB PYQs with answers and explanations and strengthen your Railway Physics preparation.
41
Which of the following statements best explains why sound can NOT travel through a vacuum?
RRB Group D
17 Aug, 2026 (9:00 AM - 10:30 AM)
2026
✓ Answer:CSound requires particles to transfer energy, but a vacuum has no particles.
The correct choice is Sound requires particles to transfer energy, but a vacuum has no particles.. Sound behaviour is determined by wave properties such as frequency, amplitude, wavelength and the medium of propagation.
42
Which of the following statements best describes how sound travels through different materials?
RRB Group D
12 Aug, 2026 (9:00 AM - 10:30 AM)
2026
✓ Answer:ASound travels faster in solids than in liquids and gases.
The correct choice is Sound travels faster in solids than in liquids and gases.. Sound behaviour is determined by wave properties such as frequency, amplitude, wavelength and the medium of propagation.
43
Which of the following are electromagnetic waves?
RRB NTPC (Stage-I)
31/07/2021 (Shift-I)
2021
✓ Answer:CX-rays
X-rays are electromagnetic radiation. Alpha and beta rays are particles, while audible sound is mechanical.
44
A wave has a frequency of 50 Hz and a speed of 36 m/s. What is its wavelength?
RRB NTPC (Stage-I)
31/07/2021 (Shift-II)
2021
✓ Answer:D0.72 m
λ = v/f = 36/50 = 0.72 m.
45
Visible radiation was discovered by:
RRB NTPC (Stage-I)
02/03/2021 (Shift-I)
2021
✓ Answer:CIsaac Newton
The source selects Isaac Newton, referring to his work on the visible spectrum and dispersion of white light. Saying that visible radiation itself was discovered by him is historically imprecise.
46
Which of the following is NOT an electromagnetic wave?
RRB NTPC (Stage-I)
08/04/2021 (Shift-I)
2021
✓ Answer:DUltrasound
Ultrasound is a mechanical sound wave and requires a material medium.
47
If a wave has velocity v, frequency f and wavelength λ, what is the relation between them?
These RRB Sound PYQ questions help you understand the question pattern and important concepts from the Sound chapter. Each question is provided with the correct answer and a clear explanation, making this page useful for both revision and regular practice.
Whether you are preparing for RRB NTPC Sound PYQ, RRB Group D Sound PYQ, RRB JE Sound PYQ, RRB ALP Sound PYQ, or RRB Technician Sound PYQ, practice these previous year questions regularly to strengthen your Physics preparation.
Tags: Sound RRB Physics PYQ, Sound Previous Year Questions, RRB NTPC Sound PYQ, RRB Group D Sound PYQ, RRB JE Sound PYQ, RRB ALP Sound PYQ, RRB Technician Sound PYQ, Sound Questions for Railway Exams, Sound MCQ for RRB Exams, Physics Sound Questions, Sound Waves RRB PYQ
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