1) What is the wavelength of a 100 M-Hz(100FM) radio signal?
2)What would be the frequency of an electromagnetic wave with a wavelength of 12800?
3)Estimate the frequency of an electromagnetic wave having a wavelength equal to the size of the period at the end of this sentence. In what part of the electromagnetic spectrum would such a wave lie?
4) What would be the wavelength of an electromagnetic wave having a frequency equal to the clock speed of a 3.2GHz personal computer? In what part of the electomagnetic spectrum would the wave lie?
Thanks!
2007-11-02 08:41:56 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Follow the instructions given earlier for the first three, but 4 is more interesting, because above around 3.2 GHz is microwave radiation, and so your computer could start to cook you! This is why chip makers are starting to use multiple chips rather than going faster (with more energy), cause they might start getting sued!
2007-11-02 09:17:12 · answer #1 · answered by Andrew W 4 · 0⤊ 0⤋
Hi. Obviously someone is too tired to understand frequency and wavelength. In all cases the length of a one second long wave is about 300,000 km. This number divided by the wavelength is the frequency. This number divided by the frequency is the wavelength. Always.
2007-11-02 15:48:15 · answer #2 · answered by Cirric 7 · 0⤊ 0⤋
frequency = c / wavelength
c is 300,000,000 meters per second.
Plug and chug (plug in the numbers and do the math). I'll do the first one for you.
100 MHz is 100 million cycles per second or 100,000,000
100,000,000 = 300,000,000 / wavelength
wavelength = 300,000,000/100,000,000
wavelength = 3 meters.
2007-11-02 15:53:42 · answer #3 · answered by campbelp2002 7 · 0⤊ 0⤋
How will you learn these lessons if other people do them for you?
2007-11-02 15:46:12 · answer #4 · answered by darkdiva 6 · 0⤊ 0⤋