Home
Class 12
PHYSICS
In the following arrangement y = 1.0 mm ...

In the following arrangement `y = 1.0 mm , d = 0.24 mm` and `D = 1.2 m`. The work function of the material of the emitter is `2.2 eV`. The stopping potential `V` needed to stop the photo current will be

A

0.9 V

B

0.5 V

C

0.4 V

D

0.1 V

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT AND X-RAYS

    ERRORLESS |Exercise Cathode Rays and Positive Rays|11 Videos

  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT AND X-RAYS

    ERRORLESS |Exercise Photon and Photoelectric Effect|4 Videos

  • ELECTRO MAGNETIC INDUCTION

    ERRORLESS |Exercise SET|20 Videos

  • ELECTRONICS

    ERRORLESS |Exercise Selv Evaluation Test|23 Videos

Similar Questions

Explore conceptually related problems

In the arrangement shown if Fig. y=1.0mm , d=0.24mm and D=1.2m . The work function of the material of the emitter if 2.2 eV. Find the stopping potential V needed to stop photocurrent (in xx10^(-1) V).

Light of energy 2.0 eV falls on a metal of work function 1.4 eV . The stopping potential is

A photon of energy 12 V falls on metal surface whose work function is 4.15 eV . The stopping potential is

The photoelectric work function for aluminium is 4.2 eV. What is the stopping potential for radiation of wavelength 2500 Å ?

A metal surface of work function 1.07 eV is irradiated with light of wavelength 332 nm . The retarding potential required to stop the escape of photo - electrons is

A metal of work function 4eV is cexposed to a radiation of wavelegth 140xx10^(-9)m . Find the stopping potential.

Wavelength changed from 280 to 400nm, work function = 2.5 eV then find change in stopping potential.

The electron in the hydrogen atom jumps form excited state (n=3) to its ground state (n=1) and the photons thus emitted irradiate a photosenstive material. If the work function of the material is 5.1eV, the stopping potential is estimated to be: (The energy of the electron in nth state is E_(n)=-13.6//n^(2)eV )