SSC CGL2021Waves1.What is the approximate speed of sound in air at 0°C?A232 m/sB331 m/sC440 m/sD3 × 10⁸ m/sView AnswerCorrect Answer:B — 331 m/sExplanation:The speed of sound in air at 0°C is approximately 331 m/s. It increases with temperature.
