The velocities of sound waves in four media P, Q, R and S are 18,000 km/ h, 900 km/h, 0 km/h, and 1200 km/h respectively. Which medium could be a liquid substance ?

(a) P

(b) Q

(c) R

(d) S

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Solution

Substance P: 18000 km/h
$A s w e k n o w,$
$V = \sqrt{\frac{Y}{p}}; v e l o c i t y o f s o u n d i n s o l i d$
$V = \sqrt{\frac{y R T}{M}}; v e l o c i t y o f s o u n d i n g a s$
$V = \sqrt{\frac{B}{p}} v e l o c i t y o f s o u n d i n l i q u i d$
Note:
p represent density of the medium
The speed of sound in liquids is in the range of 4500 m/s.

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The velocities of sound waves in four media P, Q, R and S are 18,000 km/ h, 900 km/h, 0 km/h, and 1200 km/h respectively. Which medium could be a liquid substance ? (a) P (b) Q (c) R (d) S

Substance P: 18000 km/hAsweknow,V=√Yp;velocityofsoundinsolid V=√yRTM;velocityofsoundingas V=√Bpvelocityofsoundinliquid Note: p represent density of the mediumThe speed of sound in liquids is in the range of 4500 m/s.

The velocities of sound waves in four media P, Q, R and S are 18,000 km/ h, 900 km/h, 0 km/h, and 1200 km/h respectively. Which medium could be a liquid substance ?

(a) P

(b) Q

(c) R

(d) S