Calculate de-broglie wavelength of an electron travelling, Chemistry

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Calculate de-Broglie wavelength of an electron travelling at 1% of the speed of light:

(1) 2.73 x 10- 24               

(2)  2.42 x 10-10

(3)  242.2x 10- 10                             

(4) None of these

ans: 2.42 x 10-10

 


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