A photoelectric cell is connected to a source | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) $1$. The saturation photoelectric current is directly proportional to the intensity of the incident radiation. Since the intensity is reduced, the

Vedclass · Accepted Answer

$C$

Vedclass · Answer

(C) $1$. The saturation photoelectric current is directly proportional to the intensity of the incident radiation. Since the intensity is reduced, the saturation current for the new graph must be lower than that of the original (broken) line.$2$. The stopping potential is directly proportional to the frequency of the incident radiation (according to Einstein's photoelectric equation: $K_{max} = h
u - \phi = eV_s$). Since the frequency is increased, the magnitude of the stopping potential must increase (i.e., it becomes more negative).$3$. Comparing the given curves, curve $C$ has a lower saturation current than the broken line and a larger magnitude of stopping potential (shifted further to the left). Therefore, curve $C$ represents the new situation.

Similar Questions

An atomic power nuclear reactor can deliver $300\, MW$. The energy released due to fission of each nucleus of uranium atom $^{235}U$ is $170\, MeV$. The number of uranium atoms fissioned per hour will be

During transcription,the site on $DNA$ where $RNA$ polymerase binds is called .........

The Poisson's ratio of a material is $0.5$. If a force is applied to a wire of this material,there is a decrease in the cross-sectional area by $4 \%$. The percentage increase in the length is ........ $\%$

Let $a \neq 0$ and $p(x)$ be a polynomial of degree greater than $2$. If $p(x)$ leaves remainders $a$ and $-a$ when divided respectively by $x+a$ and $x-a$,then the remainder when $p(x)$ is divided by $x^2-a^2$ is:

Arrange $NH_4^+$,$H_2O$,$H_3O^{+}$,$HF$,and $OH^{-}$ in increasing order of acidic nature.

Vedclass Test Series

Exam Paper Generator

Online Exam Module