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Sound MCQs for Competitive Exams

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Sound MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

9 MCQs Page 1

Topic Notes: Sound

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Sound MCQs in General Science-Everyday Science are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

Attempt the questions page by page, check the correct answers, read the explanations where available, and compare your weak areas with past papers and mock test performance. Consistent MCQ practice improves speed, confidence, and retention for objective exam sections.

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1
What is the term for the phenomenon where sound reflects off surfaces like walls or ceilings, blending with the original sound and altering its perceived quality?
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2
What is the fundamental physical principle behind the operation of SONAR?
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3
Why are soldiers instructed to break their rhythmic step when crossing a suspension bridge?
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4
Why are the massive nuclear explosions occurring within stars not audible to observers on Earth?
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5
Which physical phenomenon is responsible for the production of an echo?
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6
In which of the following materials does sound travel at the highest velocity?
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7
In which of the following media does sound travel at the highest velocity?
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8
How are ultrasonic waves defined in terms of their frequency range?
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9
What is the approximate speed of sound in dry air at a temperature of 20°C?
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