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Homework Help: Wave lenght in micrometers

  1. Jan 19, 2009 #1
    1. The problem statement, all variables and given/known data
    Calculate the wavelength in micrometer of infrared radiation whose frequency is 3.10 × 10^14 Hz. Express answer in scientific notation. speed of light = 3.00 x 10^8 m/s

    2. Relevant equations
    wave length = speed of light/frequency

    3. The attempt at a solution
    1. so far i plugged in and i got 9.68 x 10^7 m/s Hz
    2. then i converted the 9.68 x 10^7 to Micro meters
    (9.68x10^7)( 1.0 x 10^-6) = (9.68 x 10^1 Micrometers/s Hz)?

    is that the right answer?
  2. jcsd
  3. Jan 20, 2009 #2


    User Avatar

    Staff: Mentor

    Unfortunately - no.

    3e8/3.1e14 is not 9.68e7

    To convert meters to micrometers you don't multiply by 1e-6

    Generally - watch your units, you will not miss the conversion then. What is Hz?
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