Frequency and wavelength!

  • #1
A resonant circuit in a radio receiver is tuned to a certian station when the inductor has a value of 0.151mH and the capacitor has a value of 21.2pF. Calculate the frequency of the radio station.

Frequency is 2.81 MHz ( I got this one right)

B) what is the wavelength of the radiowaves emited by the radio station?
I was told to do this just take 1/f,but this gave me a wrong answer. Is there another way of going about it?
 

Answers and Replies

  • #2
281
1
1\f is the period,

for wavelength you want to use the equation for all waves

[tex] v = f \lambda [/tex]

where v is the speed of propogation of the wave
 
  • #3
2,210
1
For this problem, [tex] v = c [/tex]. All electromagnetic waves travel at the speed of light, so:

[tex] f = c/\lambda [/tex]
 
  • #4
281
1
Well there goes the chance of the OP doing any of the work for himself.
 
  • #5
2,210
1
A lot of people dont know that, its not a question of doing work, its just a fact he needs.
 

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