The work function of a metal is 4.2 Ev. Its threshold wavelength … - Vidyadip

MCQ

The work function of a metal is 4.2 Ev. Its threshold wavelength will be ______

A
4000 Å
B
3500 Å
✓
2959 Å
D
2500 Å

✓

Answer

Correct option: C.

2959 Å

The work function of a metal is 4.2 Ev. Its threshold wavelength will be 2959 Å.

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