Question

What is the speed of sound at the atmospheric temperature of 30°C?
A. 340 meters/second
B. 341 meters/second
C. 349 meters/second
D. 300 meters/second

Answer 1

Answer:

Option C is the correct answer.

Explanation:

The speed of sound in air is given approximately by  

$v=331.4+0.6T_c$

Here $T_c$ is the temperature in degree Celsius.

Temperature $T_c=30^0C$

Substituting we will get

     v = 331.4 + 0.6 x 30 = 349.4 m/s

Option C is the correct answer.

Answer 2

Answer:

349.4 m/s

Explanation: