Which choice correctly describes the waves in the electromagnetic spectrum?

The waves within the electromagnetic spectrum are all longitudinal waves which move at the same speed in a vacuum.
The waves within the electromagnetic spectrum are longitudinal and transverse waves which move at the same speed in a vacuum.
The waves within the electromagnetic spectrum are all transverse waves which move at different speeds in a vacuum.
The waves within the electromagnetic spectrum are all transverse waves which move at the same speed in a vacuum.
Is it the third one?

whats the correct one then ?

The bands within the spectrum are made of fluctuating electric and magnetic fields and have a wide range of frequencies and wavelengths.

No, the correct choice is the fourth one: "The waves within the electromagnetic spectrum are all transverse waves which move at the same speed in a vacuum."

To understand why this is the correct choice, let's break it down:

Electromagnetic waves are a form of energy that can travel through space. They are characterized by their wavelength and frequency. The electromagnetic spectrum encompasses a wide range of waves, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Now, let's address the options:

1. "The waves within the electromagnetic spectrum are all longitudinal waves which move at the same speed in a vacuum." This statement is incorrect. Electromagnetic waves are actually transverse waves, not longitudinal waves. In a vacuum, all electromagnetic waves travel at the same speed, which is the speed of light.

2. "The waves within the electromagnetic spectrum are longitudinal and transverse waves which move at the same speed in a vacuum." This statement is also incorrect. Electromagnetic waves are not longitudinal waves; they are solely transverse waves.

3. "The waves within the electromagnetic spectrum are all transverse waves which move at different speeds in a vacuum." This statement is incorrect. As mentioned earlier, all electromagnetic waves travel at the same speed in a vacuum, regardless of their wavelength or frequency.

4. "The waves within the electromagnetic spectrum are all transverse waves which move at the same speed in a vacuum." This statement is correct. Electromagnetic waves are indeed transverse waves that propagate through space at the same speed, which is approximately 3 x 10^8 meters per second or the speed of light.

Therefore, the correct choice is the fourth one.

answer is 1,4,5 LOOOOl

nope ... but close

a prism "splits" light because the glass has an index of refraction
... different colors (frequencies) have different speeds ... in glass