Question no 6 please Q 6 The work function of caesium is 2 14 eV Find (a) the - Physics -

Question

Question no 6 please
Q 6 The work function of caesium is 2 14 eV Find (a) the threshold
frequency for caesium and (b) the wavelength of the incident light
if photocurrent is brought to zero by stopping potential of 0 60
V
(Ans : 5 164 × 10 14 Hz, 4537 A O )

Shobhit Mittal · Accepted Answer

Dear Student,

ϕ=hν0ν0=ϕh=2 144 136*10-15=5
164*10-16 Hzhcλ=2 14+0 6eV4 136*10-15*3*108λ=2 14+0
6eVλ=4525 A°Regards

Question no 6 please Q.6. The work function of caesium is 2.14 eV. Find (a) the threshold frequency for caesium and (b) the wavelength of the incident light if photocurrent is brought to zero by stopping potential of 0.60 V. (Ans : 5.164 × 10 14 Hz, 4537 A O )

Question no 6 please
Q.6. The work function of caesium is 2.14 eV. Find (a) the threshold frequency for caesium and (b) the wavelength of the incident light if photocurrent is brought to zero by stopping potential of 0.60 V.
(Ans : 5.164 $\times 10^{14}$ Hz, 4537 $\overset{O}{A}$ )