Question

80. In which medium the speed of sound is maximum
a temperature of around 20°C ?
(A) Air
(B) Granite
(C) Water
(D) Iron​

Answer 1

Answer:

Air is a correct answer hope its helpful mark me as brainliest answer

Answer 2

Answer:

(D)  Iron is the answer .

At temperature of 20°C, the speed of sound is maximum in Iron (Fe).

Explanation:

Hope this helps you , dear friend !!!!!

Please mark it as "Brainliest" answer .