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

    分類:科學及數學 > 物理學 2016年11月04日

  2. ...raw materials by drilling, mining and quarrying 5) Electromagnetic radiation from overhead power lines, 'sick building' syndrome...

  3. .... It is a means of transferring heat by the radiation process. In theory, any heated substance can emit electromagnetic waves at other wavelengths ...

  4. ... the speed of electromagentic wave be 3 x 10^8 m/s Hence, frequency of radiation = 3x10^8/(3/100) Hz = 10^10 Hz = 10 billion Hz 2014-07-24 17...

  5. ... kinetic energy and have it radiated out as electromagnetic waves in the form of x-rays. Such phenomenon is knowned as Bremsstralung (Braking Radiation) ...

  6. ... ionizing (for such reason, they are called "non-inizing radiation). It is generally true that higher energy photons (which is the particle nature ...

  7. ...the emission of light by a substance that has absorbed light or other electromagnetic radiation of a different wavelength.It is a form of luminescence. ...

  8. .... These energies when emitted are in the form of electromagnetic radiation, thus covering all possible frequencies of the electromagentic spectrum... ...

  9. The answer is no. There is no radiation associated with the operation of an induction cooker. Induction cooker makes use of electromagnetic induction to ...

  10. ...ultraviolet (紫外線) is their wavelengths. Infrared radiation is electromagnetic waves with wavelength longer than that of visible light, typically from ...