Question

A certain FM radio station broadcasts at 90.5 MHz or 9.05 x 10⁷ Hz. The radio wave travels at the speed of light, what is its wavelength?

Answer 1

Answer:

Explanation:

The information you're given, 94.6 MHz is a frequency, so that is your f. Then, electromagnetic waves travel at the speed of light, c , which is 2.99×108ms

Converting 94.6 MHz to scientific notation 9.46×107 cycles/sec.

So,

2.99×108ms=9.46×1071s×λ

Then,

2.99×108ms9.46×1071s=3.16 m

Answer 2

Answer:

A certain FM radio station broadcasts at 90.5 MHz or 9.05 x 107 Hz. The radio wave travels at the speed of light, what is its wavelength? 0.05 m 3.31 m 2.72 x 1016 m O 2.72 x1010 m