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Question: If threshold wavelength (l°) for ejection of electron from metal is 330 nm, then work function for t...

If threshold wavelength (l°) for ejection of electron from metal is 330 nm, then work function for the photoelectric emission is –

A

6 × 10–10 J

B

1.2 × 10–18 J

C

3 × 10–19 J

D

6 × 10–19 J

Answer

6 × 10–19 J

Explanation

Solution

w0 = hcλ0\frac{hc}{\lambda_{0}}