# physics (please help)

posted by
**susan** on
.

Win 1010” AM radio broadcasts at 1010KHz. Determine the wavelength of its signal, knowing that all radio waves travel at 3.00 X 10^8 m/s.

f=1010kHz

v=3.00 X10^8 m/s

v=F X lambda

lambda= 2.9 X 10^5

For a particular type of wave in a particular medium why must f and lambda be inversely proportional.

Frequency deals with the number of waves per second, while wavelength deals with the distance from peak to peak. It would be inversely proportional because lambda deals with horizontal displacement and f deals with just the number of waves per time

Thank you for any help

f=1010kHz

v=3.00 X10^8 m/s

v=F X lambda

lambda= 2.9 X 10^5
**Did you change kHz to Hz? If I divide by 1.010 x 10^6 Hz, I get 297 meters. Or did I make a mistake? **