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Sarah
Sarah asked in Science & MathematicsPhysics · 9 years ago

What is the frequency of infrared light of 1.0 x 10^-4 m wavelength?

What is the frequency of infrared light of 1.0 x 10-4 m wavelength?

A) 3.0 x 10^-13 Hz

B)3.0 x 10^2 Hz

C)3.0 x 10^4 Hz

D)3.0 x 10^12 Hz

2 Answers

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  • Anonymous
    9 years ago
    Favorite Answer

    as we know that,

    c=nλ

    where,

    c= speed of light=3*10^8 m/s

    n=frequency and λ=wavelength

    therefore,

    n=c/λ

    n=3*10^8/1*10^-4

    n=3*10^12

    the ans is (D)

  • Fireman
    Lv 7
    9 years ago

    By c = nλ

    =>n = c/λ

    =>n = (3 x 10^8)/(1.0 x 10-4)

    =>n = 3 x 10^12 Hz

    =>(D)

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