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.
51
Which type of light carries a signal from a television remote to the device it controls?
RRB NTPC (Stage-I)
31/07/2021 (Shift-I)
2021
✓ Answer:CInfrared
Conventional television remote controls transmit coded signals using infrared light.
52
If a wave has a frequency of 50 Hz, find its time period.
RRB JE
27/05/2019 (Shift-III)
2019
✓ Answer:B0.02 s
T = 1/f = 1/50 = 0.02 s.
53
A transverse wave travels at 339 m/s. If its wavelength is 1.5 cm, what is its frequency?
RRB Group-D
26/10/2018 (Shift-III)
2018
✓ Answer:D22600 Hz
Convert 1.5 cm to 0.015 m. Then f = v/λ = 339/0.015 = 22600 Hz.
54
Particles oscillate up and down, perpendicular to the direction of propagation. What type of wave is this?
RRB Group-D
12/12/2018 (Shift-III)
2018
✓ Answer:DTransverse
The perpendicular direction of particle oscillation defines a transverse wave.
55
A wave travels at 700 m/s. How long does it take to travel 7 km?
RRB Group-D
04/10/2018 (Shift-II)
2018
✓ Answer:A10 s
t = distance/speed = 7000/700 = 10 s.
56
What is the frequency of a wave if its time period is 0.04 s?
RRB Group-D
11/10/2018 (Shift-I)
2018
✓ Answer:B25 Hz
f = 1/T = 1/0.04 = 25 Hz.
57
If a wave's frequency is doubled, its wavelength becomes:
RRB Group-D
25/09/2018 (Shift-I)
2018
✓ Answer:DHalf the original
At constant wave speed, wavelength is inversely proportional to frequency, so it is halved.
58
If the time period of a longitudinal wave is 0.04 s, what is its frequency?
RRB JE CBT-II
29/08/2019 (Shift-Evening)
2019
✓ Answer:C25 Hz
f = 1/T = 1/0.04 = 25 Hz.
59
What are transverse waves?
RRB NTPC (Stage-I)
11/02/2021 (Shift-I)
2021
✓ Answer:AWaves in which medium particles vibrate perpendicular to the direction of propagation
In a transverse mechanical wave, particle displacement is perpendicular to the direction of wave propagation.
60
If an explosion takes place at the bottom of a lake, what type of shock wave propagates through the water?
RRB Group-D
17/09/2018 (Shift-III)
2018
✓ Answer:BLongitudinal
The pressure disturbance travels through water as a longitudinal compression wave.
Showing 51 – 60 of 215 MCQ Questions | Page 6 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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