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Engineering Exams RRB-JE Civil and Allied Engineering Technical Abilities 2019 19-Sept-2019 Paper-2 Shift-1 Medium +1 -0.33
What is kept behind the stage to spread the sound evenly across the width of a hall?
Correct Answer: A. Curved soundboard
Explanation: A curved soundboard is placed behind a stage or speaker to ensure that sound waves are reflected uniformly across the entire width of a hall. Because of its concave shape, the soundboard prevents the dispersion of sound in unwanted directions and instead directs it toward the audience, ensuring clear and even audio distribution throughout the venue.
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