The figure shows different graphs between stopping potential (V0) and frequency (v) for photosensitive surface of cesium, potassium, sodium and lithium. The plots are parallel. Correct ranking of the targets according to their work function greatest first will be

Question

The figure shows different graphs between stopping potential (V0) and frequency (v) for photosensitive surface of cesium, potassium, sodium and lithium. The plots are parallel. Correct ranking of the targets according to their work function greatest first will be (A) (i) > (ii) > (iii) > (iv) (B) (i) > (iii) > (ii) > (iv) (C) (iv) > (iii) > (ii) < (i) (D) (i)= (iii) > (ii) = (iv)

Tardigrade Admin · Accepted Answer

The graph between V0 and v cut the v -axis at v0. For the given graphs (v0)( iv )>(v0)( iii )>(v0)( ii )>(v0)( i ) ∴ (W0)( iv )>(W0)( iii )>(W0)( ii )>(W0)( i )

Q. The figure shows different graphs between stopping potential $(V_{0})$ and frequency (v) for photosensitive surface of cesium, potassium, sodium and lithium. The plots are parallel. Correct ranking of the targets according to their work function greatest first will be

(i) > (ii) > (iii) > (iv)

(i) > (iii) > (ii) > (iv)

(iv) > (iii) > (ii) < (i)

(i)= (iii) > (ii) = (iv)

The graph between $V_{0}$ and $v$ cut the $v$ -axis at $v_{0}$ .
For the given graphs
$(v_{0})_{(i v)} > (v_{0})_{(iii)} > (v_{0})_{(ii)} > (v_{0})_{(i)}$
$∴ (W_{0})_{(i v)} > (W_{0})_{(iii)} > (W_{0})_{(ii)} > (W_{0})_{(i)}$

Q. The figure shows different graphs between stopping potential (V0​) and frequency (v) for photosensitive surface of cesium, potassium, sodium and lithium. The plots are parallel. Correct ranking of the targets according to their work function greatest first will be