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the work fuction of Na metal is 2.3 ev then the three shold wavelength lie in the which region?

the work fuction of Na metal is 2.3 ev then the three shold wavelength lie in the which region?

Grade:12th pass

1 Answers

Arun
25758 Points
3 years ago
Dear student
 
As E = hc/ lambda
 
lambda = hc/E = 6.628 *10^-34 * 3 * 10^8 / 2.3 *1.6 * 10^-19
 
 = 5.403* 10^-7 m = 5403 Angstr

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