The "medium" is whatever a wave requires, to be able to travel - so, the wave travels through a medium. In the case of electromagnetic waves, this medium is space itself, since it has certain electrical and magnetic properties.
Ultrasonic waves are high frequency sonic waves. They're sound, which is mechanical energy. Electromagnetic waves are waves of electromagnetic energy, like radio waves or light. Mechanical energy is different from electromagnetic energy, hence the reason for ultrasonic waves not taking the form of electromagnetic waves.
because sound waves are not a electromagnetic waves because they need a medium for travel....hence electromagnetic spectrum is based on the electromagnetic waves ..like radio waves , micro waves , etc....
There is no such thing as a purely magnetic wave. The wave aspect of an electromagnetic wave comes from the oscillations between electric and magnetic fields.
electromagnetic waves are longitudinal (like a slinky).
Sound waves aren't an electromagnetic wave. So aren't seismic waves. So aren't waves in the ocean, in your hair, or waves bye-bye.
sound waves, water waves, shockwaves need mediums. Electromagnetic waves do not need a medium
Not all waves require mediums to propagate.Sound waves can travel through solid, liquid and gaseous mediums, while, electromagnetic waves do not require any medium to travel through.
frequency x wavelength = speed of the wave. This applies to all waves, not just to electromagnetic waves.
This depends a lot on the type of waves you're talking about. Sound waves, for example, can travel through water, solid, and air mediums, but not through a vacuum. Electromagnetic waves, however, can travel in a vacuum.
They all are electromagnetic waves
freq x wavelength = c (light speed)
Both are electromagnetic waves.
The product of (wavelength) times (frequency) is equal to the speed of the wave.
They are inversely proportional to each other.
Mechanical waves require a medium to travel, where electromagnetic waves do not.
Ocean waves are NOT mediums of any sort.
Light is an electromagnetic wave.