De Broglie wavelength of a particle

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The problems is:

A particle has a de Broglie wavelength of 0.00 m. Then its kinetic energy triples. What is the particle's new de Broglie wavelength, assuming that relativistic effects can be ignored?


I have no idea where to begin. Please help me:bugeye:!
 
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I think you have a typo above, a real particle can't have a deBroglie wavelength of 0.00m.

Also, for future reference, questions like this (homework type questions) should be posted in the homework help section. Also, according to the forum rules, you must show some work in order to get homework help here. You must know some more information about this problem. Find me some relevant formulas etc.
 
either that, or the answer is trivial... ;>

I.e., the new de Broglie wavelength would also be 0.00m

...unfortunately, in this case, I don't think you would be justified in ignoring relativistic effects since the momentum is infinite...
 

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