2. 19
F
e- EKmax + W
hf hf = EKmax + W
ˈ F F F
F
- F F hf ( F
) F F F EKmax F
F ˆ F W F F
- F hf < W F
- F hf = W F EKmax = 0 F
f0
- F F F F
- F F
- EKmax F f F F
- EKmax = eVS e ˂ VS F F
- EKmax = ½ mv2max m F F 9.1x10-31
-1 F (eV) = 1.6x10-19
F ˆ F www.schoolDD.com 1
3. F
F
˂ A ˂ B
V V0 ˂
EK
. F . .
F ˈ F ˂ F ˂ F
F F F FF F F
F ˂ F F F F
1. F F F F F
F F F ˂ F F
F F F . F
F F F
2. F F F F
ˈ ˂
F F F F
F F .
F ˆ F www.schoolDD.com 2
