Question 1
To what uncertainty, in pm, can the position of an electron traveling at 1.89 × 10
5 m/s be measured if the uncertainty of the speed is 2.00%?
◦ 765
◦ 654
◦ 8.33 × 10
4 ◦ 1.53 × 10
5 ◦ 1.53 × 10
4 Question 2
Use Planck's equation to determine the energy, in J/photon, of radiation of frequency 5.8 × 10
15 s
-1.
◦ 3.8 × 10
-18 J
◦ 1.7 × 10
24 J
◦ 5.8 × 10
-25 J
◦ 1.7 × 10
-16 J
◦ 5.2 × 10
-8 J