Question

The approximate temperature at which value of speed of sound is equal to the temperature itself is

• A. 830${}^0$ C
• B. 800 ${}^0$ C
• C. 927 ${}^0$ C
• D. 1210 ${}^0$ C

Answer 1

Answer: (A)

830${}^0$ C

The velocity of sound in a gas at a $t^{0}C$ is given by ,

$v_t=v_0+0.608t$ ,

we have $v_0=332m/s$ ,

now if $v_t=t$ ,

then $t=332+0.60t$ ,

or $t=332/0.4={830}^{0}C$