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.
161
At 25°C: A. Sound speed in oxygen is 316 m/min. B. Sound speed in distilled water is 1498 m/min. Which is correct?
RRB Group-D
01/10/2018 (Shift-II)
2018
✓ Answer:CNeither A nor B
The source's tabulated values use m/s, not m/min, so both statements are false.
162
Which property or condition of the medium affects sound speed?
RRB JE
23/05/2019 (Shift-III)
2019
✓ Answer:AAll of these
Sound speed depends on elastic properties and density; temperature and moisture can change the relevant properties of air.
163
The pitch of sound depends on:
RRB ALP & Technician
30/08/2018 (Shift-II)
2018
✓ Answer:CFrequency
Higher frequency produces higher perceived pitch.
164
At 25°C: A. Sound speed in steel is 5960 m/s. B. Sound speed in nickel is 6240 m/s. Which is correct according to the source table?
RRB Group-D
22/10/2018 (Shift-I)
2018
✓ Answer:AOnly A
The table lists steel at 5960 m/s and nickel at 6040 m/s, so only A matches.
165
Which determines the loudness or softness of a sound among these options?
RRB JE
24/05/2019 (Shift-III)
2019
✓ Answer:DAmplitude
Greater amplitude produces greater intensity and generally greater perceived loudness under similar conditions.
166
At 25°C: A. Sound speed in seawater is 1531 m/s. B. Sound speed in air is 346 km/s. Which is true?
RRB Group-D
12/10/2018 (Shift-II)
2018
✓ Answer:COnly A
The source's air value is 346 m/s, not 346 km/s.
167
A sound wave has frequency 4 kHz and wavelength 40 cm. How long does it take to travel 3.2 km?
RRB ALP & Technician
13/08/2018 (Shift-II)
2018
✓ Answer:C2 s
v = 4000 × 0.4 = 1600 m/s; t = 3200/1600 = 2 s.
168
Sound travels through air to our ears and gives us:
RRB Group-D
16/10/2018 (Shift-II)
2018
✓ Answer:CSensation of sound
Sound waves stimulate the hearing system and produce the sensation of sound.
169
At 25°C: A. Sound speed in aluminium is 6220 m/s. B. Sound speed in nickel is 6040 m/s. Which is true according to the source table?
RRB Group-D
15/10/2018 (Shift-II)
2018
✓ Answer:COnly B
The source table gives aluminium as 6420 m/s and nickel as 6040 m/s, so only B matches.
170
A sound wave has frequency 50 Hz and wavelength 4 m. What is its speed?
RRB JE
23/05/2019 (Shift-III)
2019
✓ Answer:A200 m/s
v = fλ = 50 × 4 = 200 m/s.
Showing 161 – 170 of 215 MCQ Questions | Page 17 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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