A metal surface is illuminated by light of two different wavelengths 248 nm and 310 nm…
Chemistry · JEE Advanced · NTA Exams — Atomic Structure
A metal surface is illuminated by light of two different wavelengths 248 nm and 310 nm. The maximum speeds of the photoelectrons corresponding to these wavelengths are u1 and u2, respectively. If the ratio
u1 : u2 = 2 : 1 and hc = 1240 eV nm, the work function of the metal is nearly
u1 : u2 = 2 : 1 and hc = 1240 eV nm, the work function of the metal is nearly
- 3.7 eV
- 3.2 eV
- 2.8 eV
- 2.5 eV
Answer
(A) 3.7 eV
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