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What is the speed of sound in air at 20°C?

A300 m/s
B1500 m/s
C343 m/s
D50 m/s

Explanation

The speed of sound in dry air at 20°C is approximately 343 meters per second (approx. 1,235 km/h).

Exam Relevance
  • Topic: Physics, Biology, Chemistry & Astronomy
  • Subtopic: Human Anatomy, Earth Science, Solar System & Basic Principles
Submitted by: mcqstutor Team More Everyday Science MCQs →

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