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Question
Which of the following is true about the speed of sound?
Options:
A .  It decreases with increase in temperature.
B .  It is more in solid state as compared to the gaseous state.
C .  It is the same in liquid and gaseous state.
D .  It is the same in solid and gaseous state.
Answer: Option B
:
B
Sound wave travels fastest in solids, faster in liquids and slower in gases.
Temperature is the average kinetic energy of all the particles of a body. When the temperature increases for a given state of matter, the movement of particles increases and so does the speed of sound.

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