Question

Work function energy of metal is 6.63×10power -19 j. Find the value of threshold frequency for it .

Answer 1

Answer:

10^15

Explanation:

work function of metal=hv°

where h=planks constant(6.63×10^-34) and

v°=threshold frequency

therefore

6.63×10^-19=6.63×10^-34×v°....

v°=10^15