Question

Quantum physics

Answer 1

voltage - 0.35 V
radiation used = 256.7 nm
Work function =?

Answer 2

any other clue?

Answer 3

nope!

Answer 4

There is a paragraph i extracted numerical values from it

Answer 5

can i see the paragrph

Answer 6

The ejection of the photoelectron from the silver metal in the photoelectric effect experiment can be stopped by applying the voltage 0.35 V when the radiation 256.7 nm is used. Calculate the work function of the silver metal

Answer 7

ummm , Can we use the equation
\[\huge eV _{o} = \frac{ 1 }{2 }mv ^{2}_{\max}\]

Answer 8

e= \[1.6* 10^{-19} C\]

Answer 9

and then use the Einsteins's photoelectric equation maybe

Answer 10

you should make equal kinetic energy of the electron to the eV, then you should find the energy of the photon, then subtract kinetic energy from the energy of the photon.

Answer 11

yUP

Answer 12

How can we change volts to joules????

Answer 13

1ev equals 1.6x10^-19 joule

Answer 14

1 volt?

Answer 15

no, 1 electron volt equals 1,6*10^-19 joule

Answer 16

@Vincent-Lyon.Fr

Answer 17

oksuz_ is right, the change in potential energy of the electron is
0.35 eV = 0.35 x 1.6x10\(^{-19}\) J