De Broglie Wave 

At what speed is an electron's de Broglie wavelength 1.0 pm?

Express your answer with the appropriate units.

Part B

At what speed is an electron's de Broglie wavelength 1.0 nm?

Express your answer with the appropriate units.

Part C

At what speed is an electron's de Broglie wavelength 1.0   m?

Express your answer with the appropriate units.

Part D

At what speed is an electron's de Broglie wavelength 1.0 mm?

Express your answer with the appropriate units.

Calculate the de Broglie wavelength of an electron in the

n =9 state ofhydrogen.
1m

Part A:
Find the de Broglie wavelength of electrons with kinetic energiesof 30eV.
lamda=...................pm

Part B:
Find the de Broglie wavelength of electrons with kinetic energiesof 3.0keV.
lamda=...................pm

Part C:
Find the de Broglie wavelength of electrons with kinetic energiesof 40keV.
lamda=...................pm


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