0
What else can I help you with?
How are em waves different from mechanical waves?
mechanical waves need a medium to travel through, electromagnetic waves do not. Electromagnetic waves can travel through space, mechanical waves can not.:PElectromagnetic waves do not require a medium, but mechanical waves do.
What type of wave uses a medium?
All waves of the EM. spectrum e.g. Radio waves Microwaves Light waves X-rays Gamma rays Cosmic Rays etc. Technically gravity waves and a couple other waves that relate to inter- and extra- atomic bonds
What is transfer of energy through space?
An electromagnetic wave is a oscillation through 2 fields, electrical and magnetic fields of the space the wave is travelling through. These oscillations are at right angles to each other. Electromagnetic waves are carried by miniscule particles of energy called photons, Light itself is one of the forms of electromagnetic waves and all EM waves travel at the speed of light 3x10^8 ms or 300 000 000 metres per second. Photons have 0 mass. Nothing with mass can truly have a higher velocity then the speed of light or EM radiation. As they are carried by photons they need no medium to travel through and can therefore travel through space/a vacuum.
What is the difference between sound waves and electromagetic?
Sound waves requires a medium, electromagnetic waves do not. Sound waves are longitudinal waves, electromagnetic waves are transverse waves. Sound waves Travels at approx. 330m/s in air, electromagnetic waves travel at approx. 3 x 10^8 m/s.
What type of short wave em radiation is used to look inside a human body?
Xray.
Is a EM wave a sound wave?
No, electromagnetic (EM) waves are different from sound waves. EM waves are vibrations of electric and magnetic fields that do not need a medium to travel through, while sound waves are mechanical vibrations that require a medium, such as air or water, to propagate.
Is sound a type of electromagnetic wave?
No, sound is not a type of electromagnetic wave. Sound is actually a mechanical wave that requires a medium (such as air, water, or solids) to travel through, while electromagnetic waves like light do not require a medium and can travel through a vacuum.
Does an em wave require medium such as air or water to travel through?
No, electromagnetic waves do not require a medium to travel through. They can propagate through a vacuum, which is why light from the sun can reach the Earth through the vacuum of space.
What would happen to a EM wave that never came into contact with matter?
If an electromagnetic wave never comes into contact with matter, it would continue to propagate through space at the speed of light. EM waves do not require a medium to travel through, so they will continue moving indefinitely until they encounter an obstacle or are absorbed by a medium.
Does an elecromagnetic wave need a medium?
No. Light is in the EM spectrum, and we can see light from the sun as space is a vacuum it can be concluded that EM waves do not need a medium.
HOW are EM wave different from mechanical wave?
Mechanical waves require a medium while Electromagnetic waves does not.
Is sound an example of an electromagnetic wave?
No. Sound is a longitudinal wave consisting of mechanical vibrations travelling through matter (solid , liquid, gas, etc). An electromagnetic wave (light) is, classically, a transversely oscillating electric and magnetic field and requires no medium in order to travel.
What happens when EM waves encounter a material medium?
When electromagnetic (EM) waves encounter a material medium, they can be absorbed, transmitted, or reflected depending on the properties of the medium. The interaction between the EM waves and the medium can result in effects such as refraction, dispersion, or attenuation of the waves as they pass through the material. The behavior of EM waves in a material medium is determined by factors like the frequency of the waves, the composition of the material, and the electrical properties of the medium.
A Wave that doesn't need a medium?
light; all waves in the EM(electromagnetic) spectrum, including visible light, do not need a medium to travel in
Why do EM not require a medium in which to travel through?
We can always tell that a wave exists from the way some quantity changes in time and varies along the direction the wave is travelling in. So for a sound wave this quantity is air pressure, for a water wave it's the height of the water etc. For an EM wave it's the strength of the electric or magnetic fields. Whereas for the other two examples the quantity comes about from the existence of a medium (air or water), for an EM wave it is part of the fundamental laws of physics, which just tell us that every point in space has an electric and magnetic field strength associated with it.
What happens when EM waves encounter a medium?
The energy in the wave is partly transmitted, partly absorbed, and partly reflected.
How do you know that electromagnetic wave are not compression wave?
If they were they would not travel through a vacuum because there would be nothing to compress. But they do travel through vacuums, so they can't be compression waves. More detail... The above does not exclude a medium that can exist in a vacuum For EM waves to be a compression wave, it must have some medium. For many years, the ether/aether was considered to be the medium, but the Michelson-Morley experiment failed to show any effect consistent with ether/aether, and the concept is now considered invalied. So, since the ether/aether cannot be detected, EM waves have no medium, so EM waves are not compression waves.
