Ask Question
6 June, 00:38

all electromagnetic waves travel at the same speed in a vacuum. however, different kinds of electromagnetic waves have different wavelengths. for example, microwaves have longer wavelengths than visible light. how is it possible for Both microwaves and visible light to travel at the same speed in a vacuum if they have different wavelengths

+4
Answers (1)
  1. 6 June, 03:31
    0
    The reason for qualifying 'in vacuum' is because EM waves of different frequencies often propagate at different speeds through material.

    Explanation:

    Electromagnetic waves include visible light, radio waves, X-rays, and so on. What distinguishes these different bands of light is their frequency (or wavelength). But what they all have in common is that they travel at the same speed in vacuum.

    The reason for qualifying 'in vacuum' is because EM waves of different frequencies often propagate at different speeds through material.

    The speed of a wave c, its wavelength λ and frequency f are all related according to c=λf. So if c is the same for all EM waves, then if you (say) double the frequency of a wave, its wavelength will halve.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “all electromagnetic waves travel at the same speed in a vacuum. however, different kinds of electromagnetic waves have different ...” in 📘 Biology if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers