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  1. ...spectrum. Any object, not necessary gas, with a temperature emits electromagnetic radiation. The radiation so emitted is caused by collisions... ...

    分類:科學及數學 > 物理學 2016年11月04日

  2. 理論上conduction,radiation都有, 首先conduction指傳導,傳導是以粒子振動的方式把能量轉開去.傳導必須要有...熱能,而且粒子和粒子之間因為不斷互相撞擊,能量便能由 ...

  3. ...absorber of heat. Because black surface object, when heated, will emit radiation of all possible wavelengths (The black-body radiation principle). ...

  4. 我諗藍芽唔係radiation 藍芽是一種無線傳輸的技術,可以讓桌上及膝型電腦、個人數位助理(PDA...

  5. ...: The temperature of object is higher than outside,it will emit radiation and become cool. The temperature of object is lower than outside,it...

  6. In fact, alpha radiation is more harzard to human. The amount of radiation absorbed by a... not mean its damage is lesser. For the same activity of the ...

  7. 假設杯水唔會從surroundings得到能量through radiation i.e the temperature of water is higher than...i.e.杯水可能會從surroundings得到能量through radiation l ...

  8. infra-red radiation係輻射其中一種,叫紅外輻射.. 1)The thermos or vacuum flask 由於淺色吸收...

  9. When food being treaded with radiation, it is called "food irradiation ". There ...

  10. ... will have a higher chance of interacting with the radiation passing through it) or atoms that compose the material. Lead ...