An electron in a TV tube has a speed of 6 × 107 m/s. What is the de B – McqOptions

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1.	An electron in a TV tube has a speed of 6 × 107 m/s. What is the de Broglie wavelength associated with the electron (m = 9.11 × 10-31 kg)?
A.	0.248 Å
B.	0.121 Å
C.	0.347 Å
D.	0.867 Å
Answer» C. 0.347 Å

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