An Electron Is Moving at a Speed of 2

Multiple Choice

An electron is moving at a speed of 2.1 *10⁶ m/s in the first Bohr orbit.Determine its de Broglie wavelength.

A) 0.30 *10 ^{- 10} m
B) 1.7 *10 ^{- 10} m
C) 0.50 *10 ^{- 10} m
D) 3.5 *10 ^{- 10} m
E) 1.5 *10 ^{- 10} m