Question

If work function of potassium is 2.30ev then threshold frequency

Answer 1

Answer:

566

Explanation:

855+558+55+52+8555+

Answer 2

Answer:5.52×10^15Hz

Explanation:

E=hf

=> frequency f=E/h

2.3eV = 2.3×1.6×10^-19V

F = 36.8×10^-19/6.67×10^-34

frequency= 5.52×10^15Hz