Question

1. A laser used in eye surgery to fuse detached retinas produces radiation with a wavelength of 640.0 nm. Calculate the frequency of this radiation.
2. (b) An FM radio station broadcasts electromagnetic radiation at a frequency of 103.4 MHz (megahertz; 1 MHz = 10^(6) Hz . Calculate the wavelength of this radiation. The speed of light is 2.998 x 10^(8) to four significant digits.