The speed of sound is maximum when A) Air a 0 °C B) Water at 25 °C C) Water at 90 °C D) None of these Related MCQs: The speed of the train going from Nagpur to Allahabad is 100 km/h while when coming back from Allahabad to Nagpur, its speed is 150 km/h. Find the average speed during whole journey? Who said, “Sound mind in a sound body”? Among the following mediums, the velocity of sound is the maximum in? Among the following mediums, the velocity of sound is the maximum in?