Physicshard · Past Paper
What is the effect of increasing pressure on the speed of sound in an ideal gas at constant temperature?
ASpeed increases
BSpeed decreases
CSpeed remains constant
DSpeed becomes zero
✓ Correct Answer: C — Speed remains constant
For an ideal gas, since density increases with pressure at constant temperature, the ratio P/density remains constant, leaving sound speed unchanged.
Share this question
More from Physics
- The EMF of a cell depends on:
- A body moves from A to B with 40 km/h and returns with 60 km/h. The average velocity is:
- When a body is thrown vertically upwards, what is its velocity at the highest point?
- A wire of resistance 20 Ohms is cut into two equal halves. What is the resistance of each half?
- Atmospheric pressure is measured using a: