# Yahoo奇摩 網頁搜尋

1. ### electromagnetic spectrum 同 electromagnetic waves 係唔係一様meanin

... to frequency) of a gamma ray source, e.g. a radionuclide. Hence, [ electromagnetic spectrum ] refers to the distribution of frequency of the concerned electromagnetic ...

2. ### Chemistry ( Electromagnetic spectrum )

using formula v=fλ ... the velocity of light= 3x10^8 m/s λ= v/f= 3x 10^8 / 5.09X10^14 =589nm

分類：科學及數學 > 化學 2006年11月02日

3. ### 要晒所有em wave 係come from天然和人造

...can't list them all. There is naturally occuring the whole electromagnetic spectrum . From very low frequencies to exremely high frequencies...

4. ### 終極物理題（２０點）

Consider the electromagnetic spectrum , the energy is higher on the blue end and lower on the red end...

5. ### Atomic emission spectrum

...and with RH = 1.0974 × 107 m-1, we have: λvac = 0.04488 m So the spectrum is expected between EHF and SHF.

分類：科學及數學 > 化學 2007年12月29日

6. ### 無線電波、微波、紅外線、可見光、紫外線、x射線、伽瑪射線的速度(ms-1)分別是多少？

...difference is that each type of waves occupies different location in the electromagnetic spectrum and hence has different frequencies (or wavelengths) ...

...opacity.jpg Radio frequency, or RF, refers to that portion of the electromagnetic spectrum in which electromagnetic waves can be generated by alternating...

8. ### line and continuous spectrum

...orbit (energy level) to a lower orbit (lower energy level) emits electromagnetic waves. If the wavelength of the wave emitted is within the visible spectrum , then spectral lines are observed. A collection of these...

9. ### How radio waves are produced

... are of electromagnetic wave occurring radio frequency portion of the electromagnetic spectrum . A common use by humans is to transport information through the atmosphere...

10. ### why do rainbow have 7 colour

... "color" is an interaction between the visible light portion of the electromagnetic spectrum and the light sensitive parts of our eyes. Our eyes...

分類：社會及文化 > 語言 2010年05月22日

1. ### 相關詞

 electromagnetic spectrum中文 電磁波頻譜