JEE Main 31-Jan-2024 Shift 1 Solved Paper

Section: Physics

Question : 50 of 90

Marks: +1, -0

When a metal surface is illuminated by light of wavelength λ, the stopping potential is 8V. When the same surface is illuminated by light of wavelength 3λ, stopping potential is 2V. The threshold wavelength for this surface is :

[31-Jan-2024 Shift 1]

5λ
3λ
9λ
4.5λ

Validate

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