Photoelectric effect takes place in element A. Its work funcation is `2.5 eV` and threshold wavelength is `lambda`. An other element B is having work

Photoelectric effect takes place in element A. Its work funcation is `2.5 eV` and threshold wavelength is `lambda`. An other element B is having work function of `5 eV`. Then find out the wavelength that can produce photoelectric effect in B.
A. `lambda//2`
B. `2lambda`
C. `lambda`
D. `3lambda`

Monjur Alahi

7 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - A
`(phi_(1))/(phi_(2)) = (lambda_(2))/(lambda_(1))`

7 views Answered 2023-02-05 15:29

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