Question

The following graphs show the variation of stopping potential corresponding to the frequency of incident radiation (ν) for a given metal. The correct variation is shown in graph [ν₀ = threshold frequency].

(A)	(B)
(C)	(D)

विकल्प

• (D)

• (A)

• (B)

• (C) 

Answer 1

(A)

Explanation:

From Einstein's photoelectric equation,

K_max = hν - Φ₀

⇒ eV₀ = hν - hν₀

or V₀ = `h/e(ν - ν_0)`

As a result, Figure A accurately depicts a graph illustrating the variable stopping potential and frequency.