Question

Consider Newton's formula for the velocity of sound of a gas depends of
$1$. Gravitational constant
$2$. Acceleration due to gravity
$3$. Pressure
$4$. Density
Which of the given are correct? Choose the answer from the codes given.

• A. $3$ and $4$
• B. $4$ only
• C. $1$ and $2$
• D. $3$ only

Answer 1

The correct option is A $3$ and $4$

$v=\frac{\gamma PV}{M}$

Where $\gamma =$ density

$P=$ pressure

$v=$velocity of sound of a gas

So velocity of sound of a gas depends only upon pressure and density