MCQ
Which of the following statements is correct
  • A
    The current in a photocell increases with increasing frequency of light
  • B
    The photocurrent is proportional to applied voltage
  • The photocurrent increases with increasing intensity of light
  • D
    The stopping potential increases with increasing intensity of incident light

Answer

Correct option: C.
The photocurrent increases with increasing intensity of light
c
(c)Photoelectric current $\propto$ Intensity of light

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Given below are two statements:

Statement $I$: Atoms are electrically neutral as they contain equal number of positive and negative charges.

Statement $II$: Atoms of each element are stable and emit their characteristic spectrum.

In the light of the above statements, choose the most appropriate answer from the options given below.

A light beam is being reflected by using two mirrors, as in a periscope used in submarines. If one of the mirrors rotates by an angle $\theta$, the reflected light will deviate from its original path by the angle
$A$ block of mass $m$ moves on a horizontal rough surface with initial velocity $v$. The height of the centre of mass of the block is $h$ from the surface. Consider a point $A$ on the surface.
Red light is generally used to observe diffraction pattern from single slit. If blue light is used instead of red light, then diffraction pattern
A student performed the experiment of determination of focal length of a concave mirror by $u-v$ method using an optical bench of length $1.5$ meter. The focal length of the mirror used is $24 \mathrm{~cm}$. The maximum error in the location of the image can be $0.2 \mathrm{~cm}$. The $5$ sets of ( $\mathrm{u}, \mathrm{v})$ values recorded by the student (in $\mathrm{cm}$ ) are: $(42,56$ ), $(48,48),(60,40),(66,33),(78,39)$. The data set$(s)$ that cannot come from experiment and is $(are)$ incorrectly recorded, is $(are)$

$(A)$ $(42,56)$ $(B)$ $(48,48)$ $(C)$ $(66,33)$ $(D)$ $(78,39)$

In the network shown below, the charge accumulated in the capacitor in steady state will be ........... $\mu C$
In a transverse wave, the particles of the medium:
A laser beam is used for carrying out surgery because it
Two vertical walls are separated by a distance of $2\  m$. Wall $A$ is smooth while wall $B$ is rough with a coefficient of friction $0. 5$. A uniform rod is placed between them as shown. The length of longest rod that can be placed between walls is equal to
In a fission reaction $_{92}^{236}U{ \to ^{117}}X{ + ^{117}}Y + n + n$, the binding energy per nucleon of $X$ and $Y$ is $8.5\, MeV$ whereas of $^{236}U$ is $7.6\, MeV$. The total energy liberated will be about _______ $MeV$