p39 025

background image

25. To find the longest possible wavelength λ

max

(corresponding to the lowest possible energy) of a photon

which can produce a photoelectric effect in platinum, we set K

max

= 0in Eq. 39-5 and use hf = hc/λ.

Thus hc/λ

max

= Φ. We solve for λ

max

:

λ

max

=

hc

Φ

=

1240eV

·nm

5.32 eV

= 233 nm .


Document Outline


Wyszukiwarka

Podobne podstrony:
025 odpowiedzialnosc cywilnaid 4009 ppt
p39 039
p39 065
p03 025
p39 071
p39 033
p39 075
P32 025
025 teatroterapia Dziobak
P23 025
AB 4117 01 025
p40 025
p36 025
p39 078
p39 032
Programmed repair Auxiliary heater Part C Models 124, 126 020 024 025
p39 072
025

więcej podobnych podstron