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10 May, 19:37

The frequency of a given region of the electromagnetic spectrum is more than 3 x 1019 HZ. Note that the speed of light is 2.998 x 108 m/s. Which waves are found in this region?

A. gamma rays

B. visible light

C. microwaves

D. radio waves

E. x-rays

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Answers (2)
  1. 10 May, 19:58
    0
    Gamma rays

    Explanation:

    The wavelength (λ) of electromagnetic waves is related to the frequency (ν) as follows:

    λ = c/ν

    where c = speed of light

    ν = frequency

    Given:

    c = 2.998*10⁸ m/s

    ν = 3*10¹⁹ Hz = 3*10¹⁹ s-1

    Therefore: λ = 2.998*10⁸ m/s / 3*10¹⁹ s-1 = 1.0 * 10⁻⁸ m = 10 nm

    A wavelength of 10 nm falls in the gamma region of the electromagnetic spectrum
  2. 10 May, 21:29
    0
    Answer:-

    A gamma rays

    Explanation

    Wavelength = speed of light / frequency

    = (2.998 x 10^8 m/s) / (3 x 10^19 Hz)

    = 0.9993*10^-11 m

    which is less than the threshold for X rays 10^-11 m.

    Hence waves are gamma.
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