ExamSIDE
Questions
PREVIOUS
1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Sodium and copper have work functions $$2.3$$ $$eV$$ and $$4.5$$ $$eV$$ respectively. Then the ratio of the wavelengths is nearest to
A
$$1:2$$
B
$$4:1$$
C
$$2:1$$
D
$$1:4$$
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