Published by:
CGP EDU Academic Team
Published on: August 23, 2026
The surface of sodium metal is irradiated with radiation of wavelength x nm . The kinetic energy of ejected electrons is 
. The work function of sodium is 2.3 eV . The value of x is 
. (Nearest integer)
(Given : 
; 
)
Text Solution
Verified by ExpertsThe correct answer is:
5
(5) for photoelectric effect :
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