Physics Van 3-site Navigational Menu

Physics Van Navigational Menu

Q & A: Light Waves Homework

Learn more physics!

Most recent answer: 10/22/2007
Q:
hi, please can you help on this: 1) whats the frequency of yellow light that has a wavelength 500nm? how long does it take for one wave to be produced? 2) What wavelength is associated with a radio station transmitting at 200MHz? thanx loads.
- mill (age 16)
A:
Mill -

Contrary to popular belief, we're not going to do your homework for you. You should be able to do all these problems yourself using just a few equations:

frequency (in Hz) x wavelength (in meters) = speed of light (c = 3x108 m/s) OR (f) x (lambda) = (c)


period (T = time for 1 wavelength to move by) = 1 / frequency (in Hz) OR T = 1/f

1 MHz = 1000 Hz

Good luck!

-Tamara

(published on 10/22/2007)

Follow-up on this answer.