Question

The work function for tungsten and sodium are 4.5 eV and 2.3 eV respectively. the threshold frequency
for sodium is 5460 A, the value of £(wavelength) for tungsten is

(1) 5893 Å
(2) 10683 Å
(3) 2791 A
(4) 528 A
​

Answer 1

Answer:

i. think 1 option is correct

Answer 2

Answer:

I think 1 is the correct answer