jee-main 2009 Q25

jee-main · India Not Maths
The surface of a metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is $( \mathrm { hc } = 1240 \mathrm { eVnm } )$
(1) 3.09 eV
(2) 1.41 eV
(3) 1.51 eV
(4) 1.68 eV 
The surface of a metal is illuminated with the light of 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is $( \mathrm { hc } = 1240 \mathrm { eVnm } )$\\
(1) 3.09 eV\\
(2) 1.41 eV\\
(3) 1.51 eV\\
(4) 1.68 eV
Paper Questions
Q1 Q3 Q4 Q5 Q11 Q12 Q13 Q15 Q16 Q17 Q22 Q23 Q24 Q25 Q26 Q30 Q31 Q32 Q43 Q44 Q46 Q47 Q48