What is one way that light waves differ from sound waves?(1 point)
Which answer is the best option?
a) Light waves do not require a medium to propagate.
b) Light waves transfer energy.
c) Light waves travel by oscillation.
d) Light waves all have the same frequency
a) Light waves do not require a medium to propagate.
correct
Thank you!
The best option to answer the question "What is one way that light waves differ from sound waves?" is option a) Light waves do not require a medium to propagate.
To arrive at this answer, we can compare the characteristics of light waves and sound waves:
1. Medium: Sound waves require a medium, such as air, water, or solid materials, to propagate. They create vibrations in the medium, which are then transmitted as sound. In contrast, light waves do not require a medium to travel through. They can travel through a vacuum, like outer space, where there is no air or matter.
2. Transfer of Energy: Both light waves and sound waves transfer energy. However, the way they transfer energy is different. Sound waves transfer energy by causing particles in a medium to vibrate, passing energy between adjacent particles. Light waves, on the other hand, transfer energy through the electromagnetic field. This energy transfer is not dependent on the presence of particles or a medium.
3. Oscillation: Light waves and sound waves both involve the concept of oscillation. However, the type of oscillation is different. Sound waves are mechanical waves and propagate through the oscillation of particles in a medium. Light waves, on the other hand, are electromagnetic waves and propagate through the oscillation of electric and magnetic fields perpendicular to each other.
4. Frequency: Light waves can have different frequencies, meaning they can have different wavelengths and colors. Therefore, not all light waves have the same frequency. Sound waves also have different frequencies, but the characteristics of their frequency are different from those of light waves.
Based on these comparisons, the best option is a) Light waves do not require a medium to propagate, as this is a key characteristic that distinguishes light waves from sound waves.