An Electron Is Moving at a Speed of 2

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