The graph between the stopping potential ( V 0 ) and (1/λ) is shown in the figure φ 1 , φ…

Chemistry · JEE Advanced · NTA Exams — Atomic Structure

The graph between the stopping potential (V₀) and (1/λ) is shown in the figure φ₁, φ₂ and φ₃ are work functions. Which of the following is/are correct?

1. f₁ : f₂ : f₃ = 1 : 2 : 4
2. f₁ : f₂ : f₃ = 4 : 2 : 1
3. tanq is directly proportional to where h is Planck’s constant and c is the speed of light
4. Ultra violet light can be used to emit photoelectrons from metal 2 and metal 3 only.

Answer

(B) f 1 : f 2 : f 3 = 4 : 2 : 1

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