The answer is 1 wavelength.
http://wiki.answers.com/Q/How_far_in_terms_of_wave...

The time for a wave
http://www.chacha.com/question/howfardoesawave...

The period is a time. How far the wave travels depends on the speed of the wave, according to the plain old equation. distance = speed x time.
http://answers.yahoo.com/question/index?qid=201102...

Light travels at a constant, finite speed of 186,000 miles each and every second. That means it travels about 5.36 miles in .001 of a second.
http://www.kgbanswers.com/howfarcanalightwave...
