GK
THE UNIVERSE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Must travel through a vacuum
|
|
|
Can travel through a medium or a vacuum
|
|
|
Are the same type of wave as mechanical waves
|
|
|
Can only travel through a vacuum
|
Detailed explanation-1: -Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.
Detailed explanation-2: -Electromagnetic waves do not require a medium to propagate, they can easily pass through a vacuum. Electromagnetic waves propagate outward in all directions from the source of the disturbance. Waves keep traveling until something interrupts them.
Detailed explanation-3: -Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum.
Detailed explanation-4: -Electromagnetic waves do not need a medium to travel through. E-mag waves travel the fastest in a vacuum. The transfer of energy by e-mag waves through empty space is known as electromagnetic radiation. The speed of a wave is the product of its wavelength and frequency.