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

sadaf sagheer , 6 Years ago
Grade 12th pass
anser 1 Answers
Arun

Last Activity: 6 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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