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Light waves have some similarities with water and sound waves, but they are not exactly the same. Describe all the differences you can think of between light waves, sound waves, or water waves.

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User Shmeeps
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Final answer:

Light waves differ from sound and water waves primarily by traveling through a vacuum, being electromagnetic, faster, capable of energy transfer without matter, having a different spectrum, and exhibiting interference and diffraction under varying conditions.

Step-by-step explanation:

The differences between light waves, sound waves, and water waves are numerous and include the following:

  • Medium of Propagation: Sound waves require a physical medium (solid, liquid, or gas) to travel, whereas light waves do not and can travel through a vacuum.
  • Type of Wave: Sound waves are mechanical and longitudinal where the wave oscillations occur in the direction of the wave's travel, while light waves are electromagnetic and transverse with oscillations perpendicular to the direction of travel.
  • Speed: Light waves travel much faster than sound waves. For example, the speed of light in a vacuum is roughly 299,792 kilometers per second, whereas the speed of sound in air at sea level in standard conditions is about 343 meters per second.
  • Energy Transfer: Light waves can transport energy through empty space, while sound waves can only do this with the presence of matter.
  • Spectrum: Light has a spectrum that ranges from infrared to ultraviolet which includes visible light, whereas sound is limited to the acoustic range perceivable by human hearing.
  • Wavelength and Frequency: Because sound and light waves occupy different parts of the electromagnetic spectrum, they have varying wavelengths and frequencies.
  • Interference and Diffraction: While both sound and light exhibit interference and diffraction, these phenomena occur under different conditions due to the variations in wavelength size relative to the objects they encounter.

User Zeynep
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Answer:


All the waves are pertubations that propagate (transport) energy.

Nevertheless, they have some differences:


1. Light waves are electromagnetic waves, while sound and water waves are mechanical waves, this is the first and principal difference.

2. Electromagnetic waves can propagate in vacuum (they do not need a medium or material), but mechanical waves obligatory need a material to propagate

3. Light waves are always transversal waves, this means the oscillatory movement is in a direction that is perpendicular to the propagation; but mechanical waves may be both: longitudinal waves (the oscillation occurs in the same direction as the propagation) or transversal waves.

4. Electromagnetic waves propagates at a constant velocity (Light velocity) while the velocity of mechanical waves will depend on the type of wave and the density of the medium or material.

5. Mechanical waves are characterized by the regular variation of a single magnitude, while electromagnetic waves are characterized by the variation of two magnitudes: the electric field and the magnetic field

6. Water waves are 2-dimensional waves, while the light and the sound are tridimensional spherical waves

7. Light waves transports energy in the form of radiation, while mechanical waves transport energy with material


User ZOqvxf
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