Stars don't have electromagnetic waves. They absorb them and release them. It is not a known fact because electromagnetism is only a theory for now. However, light that reach us from stars are said to be EM waves because visible light is theorized to be in the EM spectrum.
A pulsar
Geomagnetic waves are thought to be the lowest frequency (and, therefore, the longest wavelength) electromagnetic waves in the universe. They are generated by movements in planetary structures that modulate a planet's magnetic field to create the wave. Certainly lower frequency electromagnetic waves could be generated, but they would be artificial. A link is provided for some useful information.
Electromagnetic waves.
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.
Sound waves are not a type of electromagnetic wave. Sound waves are mechanical vibrations that require a medium, such as air or water, to propagate, whereas electromagnetic waves can travel through a vacuum.
The process by which information is carried by electromagnetic waves is called modulation. This involves varying the characteristics of the electromagnetic waves, such as amplitude, frequency, or phase, to encode the information being transmitted.
by the property of reflection or electromagnetic waves
No. We get electromagnetic waves from the sun. We can see stars and sun even though there is a virtual vacuum between us. Electromagnetic radiation or electromagnetic waves includes the radio and television signals that we can get from space satellites.Sound is not an electromagnetic wave, it needs a medium.
Electromagnetic waves transmit energy and information through the interaction of electric and magnetic fields.
Electromagnetic radiation is transferred by electromagnetic waves. Electromagnetic radiation is a fundamental phenomenon of electromagnetism.
"Cymatic" refers to sound waves and similar vibrations, not to electromagnetic waves. You can do some reading on electromagnetic waves - to get started, you might read the Wikipedia article - and then decide what similarities there are to sound waves.
Light is made up of waves - of a type known as electromagnetic waves.
Yes, stars produce electromagnetic waves as a result of nuclear fusion reactions in their cores. The energy released during these reactions causes the stars to emit electromagnetic radiation across various wavelengths, including visible light, ultraviolet light, and X-rays.
Yes, waves of the electromagnetic spectrum, including visible light and radio waves, can travel through a vacuum. This is because electromagnetic waves do not require a medium to propagate, unlike mechanical waves such as sound waves.
Electromagnetic waves. Otherwise known as light radiation.
microwaves
Electromagnetic waves carry energy and information. Energy is transferred through the oscillation of electric and magnetic fields, while information can be encoded in the frequency, amplitude, and phase of the wave.