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.
61
In longitudinal waves, particles vibrate _____ to the direction of wave propagation.
RRB Group-D
05/11/2018 (Shift-III)
2018
✓ Answer:DParallel
Longitudinal waves have particle oscillations parallel to the direction in which the disturbance travels.
62
A transmitting station emits waves of frequency 71 × 10⁴ Hz at a speed of 3 × 10⁸ m/s. What is their wavelength?
RRB ALP & Technician
17/08/2018 (Shift-I)
2018
✓ Answer:C422.5 m
λ = v/f = (3 × 10⁸)/(71 × 10⁴) ≈ 422.5 m.
63
In which type of wave do vibrations occur parallel to the direction of wave movement?
RRB JE
29/05/2019 (Shift-I)
2019
✓ Answer:CLongitudinal
In longitudinal waves, particles vibrate parallel to the direction of propagation.
64
Which of the following is not a transverse wave?
RRB Group-D
05/11/2018 (Shift-II)
2018
✓ Answer:DSound wave
Ordinary sound in air is longitudinal, whereas freely propagating electromagnetic waves are transverse.
65
Which quantity represents the distance travelled by a wave in one second?
RRB JE
26/06/2019 (Shift-I)
2019
✓ Answer:CWave velocity
The distance travelled per unit time gives wave speed, called wave velocity in the options.
66
An anchored boat is rocked by waves whose consecutive crests are 100 m apart. The wave speed is 25 m/s. What is the rocking frequency?
RRB Group-D
05/11/2018 (Shift-II)
2018
✓ Answer:B0.25 Hz
f = v/λ = 25/100 = 0.25 Hz.
67
Assertion: At constant wave velocity, halving the wavelength doubles the frequency. Reason: Velocity = frequency × wavelength. Choose the correct answer.
RRB NTPC (Stage-I)
26/04/2016 (Shift-II)
2016
✓ Answer:ABoth are true, and the reason correctly explains the assertion
Since f = v/λ, halving λ at fixed v doubles f. The reason therefore explains the assertion.
68
What is the distance between two consecutive compressions in a longitudinal wave called?
RRB ALP & Technician
31/08/2018 (Shift-III)
2018
✓ Answer:BWavelength
Successive compressions are one complete spatial cycle apart, equal to one wavelength.
69
Which is not a characteristic of a wave?
RRB NTPC (Stage-II)
18/01/2017 (Shift-I)
2017
✓ Answer:DMedium
Wavelength, amplitude and frequency describe the wave; the medium is the material through which a mechanical wave travels.
70
Which type of wave contains compressions and rarefactions?
RRB Group-D
15/11/2018 (Shift-II)
2018
✓ Answer:ALongitudinal wave
Longitudinal mechanical waves produce alternating regions of higher and lower pressure or density.
Showing 61 – 70 of 215 MCQ Questions | Page 7 of 22
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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