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12 June, 14:08

The wavelength of 10^15-Hz light is:

A. 300 m

B. 300 mm

C. 300 micro-m

D. 300 nm

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Answers (1)
  1. 12 June, 14:18
    0
    D. 300nm

    Explanation:

    Wavelength = Speed of light / Frequency of light ...

    where the speed of light is ... (3 * 10^8)

    Wavelength = (3 * 10^8) / (1 * 10^15)

    Wavelength = 3 * 10^-7

    ; Wavelength = 300 * 10^-9

    Hence its ... 300 nm
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