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ممكن شرح السؤال هذا ..!

مآفهمته ابدا ،،


Electromagnetic radiation of wavelength 285 nm is emitted by magnesium
. Which of the following statements
are correct for this type of radiation?

(A) It has a greater speed than radiation with wavelength 300 nm
(B) It has a higher frequency than radiation with wavelength 300 nm
(C) Its wavelength is shorter than that of X-rays
(D) It is in the visible region

السؤال فيلو رسمة الأشعهـ والطول والموجي والتردد وكذا .. اللي بشآبتر 7

والجوآب فقرة " بـي " بس كيف حلينآهآ ..؟!