Question

12. At what temperature, the velocity of sound will be dou-
ble its value at 273 K?
(a) 2 x 273 K
(6) 4 x 273 K
(c) 8 x 273 K
(d) 16 x 273 K.​

Answer 1

Explanation:

2nd option i.e 4*273 is correct

since velocity of sound is directly proportional to √T, where T is absolute temperature.