Assume the Heisenberg Uncertainty Principle Can Take the Form $\Delta$ E $\Delta$

Multiple Choice

Assume the Heisenberg uncertainty principle can take the form $\Delta$ E $\Delta$ t $\ge$ h/4B.How accurate can the position of an electron be made if its speed is 5 * 10⁶ m/s and if the uncertainty in its energy is 10 eV?

A) 7.7 *10 ^{- 18} m
B) 1.3 *10 ^{- 23} m
C) 6.2 * 10 ^{- 15} m
D) 1.6 *10 ^{- 10} m
E) 1.2 *10 ^{- 9} m