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CBSE Class 12-science Answered

If photon is a particle then why do we associate wavelength and frequency with it?
Asked by Nishtha Sardana | 23 Nov, 2014, 09:08: PM
answered-by-expert Expert Answer
Light radiation is made up of tiny packets of energy called quanta. One quantum of light radiation is called photon which travels with speed of light. Radiation has dual nature, it possessses properties of both wave and particle. Moving material particle acts as wave or particle. The wave associated with moving material particle is called matter wave which has wavelength also called de-Broglie wavelength is given as,
 begin mathsize 14px style straight lambda equals straight h over mv straight lambda space is space wavelength space of space particle straight m space is space mass space of space particle straight v space is space velocity space of space particle end style
Answered by Priyanka Kumbhar | 24 Nov, 2014, 10:30: AM

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CBSE 12-science - Physics
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