Home
Class 12
PHYSICS
A point source of light is used in a pho...

A point source of light is used in a photoelectric effect. If the source is moved farther from the emitted metal, the stopping potential

A

will increase

B

will decrease

C

will remain constant

D

will either increase or decrease

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PHOTO ELECTRIC EFFECT AND WAVE PARTICLE DUALITY

    HC VERMA|Exercise objective II|7 Videos

  • PHOTO ELECTRIC EFFECT AND WAVE PARTICLE DUALITY

    HC VERMA|Exercise Exercise|35 Videos

  • PHOTO ELECTRIC EFFECT AND WAVE PARTICLE DUALITY

    HC VERMA|Exercise question for short answer|13 Videos

  • PERMANENT MAGNETS

    HC VERMA|Exercise Exercise|25 Videos

  • PHOTOMETRY

    HC VERMA|Exercise All Questions|44 Videos

Similar Questions

Explore conceptually related problems

A point source of light is placed in front of a plane mirror.

Light of wavelength 488 nm is produced by an argon laser which is used in the photo-electric effect. When light from this spectral line is incident on the emitter, the stopping (cut-off) potential of photoelectrons is 0.38 V. Find the work function of the material from which the emitter is made.

Knowledge Check

  • In photoelectric effect, the KE of electrons emitted from the metal surface depends upon

    A
    intensity of light
    B
    frequency of incident light
    C
    velocity of incident light
    D
    both intensity and velocity of light

    • Similar Questions

    Explore conceptually related problems

    A non-monochromatic light is used in an experiment on photoelectric effect. The stopping potential

    A point source causes photoelectric effect from a small metal plate. Which of the curves in Fig. may represent the saturation photo-current as a function of the distance between the source and the metal?

    The work function of caesium metal is 2.14 eV. When light of frequency 6xx10^(14)Hz is incident on the metal surface, photoemission of electrons occurs. What is the a. maximum kinetic energy of the emitted electrons, b. stopping potential, and c. maximum speed of the emitted photoelectrons ?

    A certain metallic surface is illuminated with manochromatic light of wavelength , lambda . The stopping potential for photoelectric current for this light is 3V_0 . If the same surface is illuminated with light of wavelength 2lambda , the stopping potential is V_0 . The threshold wavelength for this surface for photoelectric effect is:

    If the source of light used in a young's double slit experiment is changed from red to violet

    A point source of light is placed at a distance of 2f from a converging lens of focal length f. The intensity on the other side of the lens is maximum at a distance

    Figure is the plot of the stopping potential versus the frequency of the light used in an experiment on photoelectric effect. Find (a) the ratio h/e and (b) the work function.

    Home
    Profile