ch 11 dual nature

physics

work function

minimum energy required for a surface to have photo electric emission

Threshold frequency

minimum frequency required for photoelectric effect on given surface

1J in ev

6.25×10 power 18

1kev in ev

1000ev

1mev in ev

1000000

which law is followed by chemical rxn but not by nuclear rxn

conservation of mass

value of hc in ev.nm

1240 ev.nm

name three type of electron emission

thermal , photoelectric , electric

in black body radiation which rays were used and of which colour?

uv of blue colour

in which year black body radiation experiment was conducted and by whom

1900 max plank

give relation established by black body radiation ex.

E=hv

relation of phi. and mue.

phi. = hv.