the highest directly measured frequency is 5.20 x 10^14 Hz, corresponding to one of the transitions in iodine-127. How many wavelengths of e

Question

the highest directly measured frequency is 5.20 x 10^14 Hz, corresponding to one of the transitions in iodine-127. How many wavelengths of electromagnetic waves with this frequency could fit across a dot on a book page? Assume the dot is 2.00 x 10^-4m in diameter.

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Diễm Kiều 3 years 2021-09-03T07:36:33+00:00 1 Answers 123 views 0

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  1. Euphemia
    0
    2021-09-03T07:37:55+00:00
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    λ = 5.7 X 10⁻⁷m

    On using quantum dot, it is 351

    Explanation:

    Given-

    Frequency, f = 5.20 x 10^14 Hz

    Speed of light, c = 3 X 10⁸ m/s

    Wavelength, λ = ?

    We know,

    λ f = c

    λ = c / f

    λ = \frac{3 X 10^8}{5.2 X 10^1^4}

    λ = 5.7 X 10⁻⁷m

    Dot = 2 X 10⁻⁴

    So,

    2 X 10⁻⁴ / 5.7 X 10⁻⁷m = 351

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