Electromagnetic waves: speed & frequency

[Addallat]

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For ELECTROMAGNETIC WAVES

is wave speed directly proportional to both wavelength and Frequency???

since the energy of an electromagnetic wave is directly proportional to its frequency but with all other waves energy is directly proportional to amplitude


I want to know does FREQUENCY for ELECTROMAGNETIC WAVES influence SPEED OF THE WAVE

 

[Deadlifts]

For ELECTROMAGNETIC WAVES

is wave speed directly proportional to both wavelength and Frequency???

since the energy of an electromagnetic wave is directly proportional to its frequency but with all other waves energy is directly proportional to amplitude


I want to know does FREQUENCY for ELECTROMAGNETIC WAVES influence SPEED OF THE WAVE

V = lambda * frequency. You will not change the speed of an EM wave simply by changing its frequency because the wavelength will change inversely and keep the same speed. You change wave speed by altering the medium. Frequency is source dependent. Conservation of energy tells us it can't change unless the wave source is altered.

Look at your index of refraction equation, n = c / v. Plug that into your wave equation.

c / n = lambda*f.

In a vacuum, EM waves travel at the speed of light. For the purpose of MCAT level physics, introducing a non-vacuum medium with a refractive index 👎 will alter your wavespeed.

 

[Addallat]

great explanation ty