An electron has been accelerated by a potential difference of 100 ...

[biggirl4568]

An electron has been accelerated by a potential difference of 100 V. If its position is known to have an uncertainty of 1 nm, what is the percent uncertainty (Dp/p  100) of the electron?
 a. 1
  b. 2
  c. 10
  d. >>10
  e. 5

Question 2

Assume the Heisenberg uncertainty principle can take the form DEDt  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

[sarajane1989]

Answer to Question 1

A

Answer to Question 2

D