用光波的多普勒效應(yīng)公式即可.λ0=λearth*根號(hào)下（1-b/1+b）=λearth/7=450nm
對(duì)了這是sat么?
一道物理題,求波長(zhǎng)
一道物理題,求波長(zhǎng)
A galaxy is receding from us at a speed v = 0.96c.
Light emitted by the galaxy at a wavelength of 450 nm would
appear to us to have a wavelength λearth of:
答案是λearth = 3150 nm
怎么算阿?
A galaxy is receding from us at a speed v = 0.96c.
Light emitted by the galaxy at a wavelength of 450 nm would
appear to us to have a wavelength λearth of:
答案是λearth = 3150 nm
怎么算阿?
英語人氣：285 ℃時(shí)間：2020-04-28 17:44:51
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