B. inggris

Pertanyaan

Scan and skim through the text below to answer Questions 6-8!

X-radiation (composed of X-rays) is a form of electromagnetic radiation. Most X-rays have a wavelength ranging from 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 100 eV to 100 keV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. In many languages, X-radiation is referred to with terms meaning Röntgen radiation, after the German scientist Wilhelm Röntgen, who usually is credited as its discoverer, and who had named it X-radiation to signify an unknown type of radiation. Spelling of X-ray(s) in the English language includes the variants x-ray(s), xray(s), and X ray(s).

6. According to the text, who discovered X-radiation?
7. Why is X-radiation so-named?
8. What is the text mainly about?

1 Jawaban

  • Answer:
    ________
    6. According to the text, who discovered X-radiation?
    Wilhelm Röntgen. He is a German scientist.

    7. Why is X-radiation so-named?
    => because it is used to signify an unknown type of radiation.

    8. What is the text mainly about?
    It mainly tell us about Roentgen rays or X-rays.


    *Thank*

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