Question

4) continuous
37. The threshold energy (work function) of cu metal is 7.69x10-19 J the
frequencies of the radiation which eject, the electron from 'cu' metal
1)1.16x1014 Hz
2) 1.16x1015 HZ
3) 2.32x1014 Hz
4) 2.32 Ⓡ1015 Hz
of 2​

Answer 1

Answer:

I don't know bro please explain it

Answer 2

Answer:

answer is 2).1.16*1015Hz