Question 27

Sound waves travel the slowest.

Among the options provided, sound waves are known to travel at a slower speed compared to the other types of waves listed. This is primarily due to the medium through which sound propagates, as it relies on the vibration of particles in a medium like air, water, or solids.

A) Gamma waves

Gamma waves are a type of electromagnetic radiation and have extremely high frequencies. They travel at the speed of light, which is approximately 299,792 kilometers per second in a vacuum. Therefore, gamma waves travel much faster than sound waves.

B) Sound waves

Sound waves are mechanical waves that require a medium to travel through, such as air, water, or solids. In air at room temperature, sound travels at about 343 meters per second, making it significantly slower than the other types of waves listed, which all travel at or near the speed of light.

C) Visible light waves

Visible light waves are also electromagnetic waves that travel at the speed of light in a vacuum. This speed is much faster than that of sound waves. Therefore, visible light waves do not qualify as the slowest type of wave among the options.

D) Radio waves

Radio waves are another form of electromagnetic radiation and, like visible light, they travel at the speed of light in a vacuum. Consequently, radio waves travel faster than sound waves and cannot be considered the slowest type.

Conclusion

Sound waves are the slowest type of wave among the options provided, as they propagate through a medium and travel at a significantly lower speed than gamma waves, visible light waves, and radio waves, all of which move at the speed of light. This characteristic differentiates sound waves from the other types of electromagnetic waves listed.