Home
Class 11
CHEMISTRY
Monochromatic light of wavelength lambda...

Monochromatic light of wavelength `lambda` strikes a metal surface with intensity 'a' emitting 'b' electrons per second with 'c' as the maximum kinetic energy of electrons .Which of the following options will happen if 'a' is halved without changing wavelength and area of exposure?

A

Photo emission will stop.

B

New maximum kinetic energy will be same as 'c'

C

Number of photoelectrons emitted per second will be less than 'b'

D

Rate at which charge will be acquired on metal will decrease.

Text Solution

Verified by Experts

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

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    GRB PUBLICATION|Exercise Comprehesion Type|38 Videos
  • ATOMIC STRUCTURE

    GRB PUBLICATION|Exercise Match the column type|16 Videos
  • ATOMIC STRUCTURE

    GRB PUBLICATION|Exercise Reasoning Type|11 Videos
  • CHEMICAL EQUILIBRIUM

    GRB PUBLICATION|Exercise D.Le Chateliera principle|16 Videos

Similar Questions

Explore conceptually related problems

Light of wavelength lambda shines on a metal surface with intensity X and the metal emit Y electron per second of average energy Z what will happen to Y and Z if X is doubled ?

Light of wavelength lamda shines on a metal surface with intensity x and the metal emits y electrons per second of average energy, z. What will happen to y and z if x is doubled ?

Knowledge Check

  • Light of wavelength lambda strikes a metal surface with intensity X and the metal emits Y electrons per second of average energy Z . What will happen to Y and Z if X is havled?

    A
    T will be halved
    B
    Y will double
    C
    Y will be remain same
    D
    Z will be halved
  • Let of waveldnth lamda shines on a metal surface with intensity x and the metal emits Y electrons per second of average energy, Z. What will happen to Y and Z if x is doubled?

    A
    Y will be doubled and Z will become half
    B
    Y will remain same and Z will be doubled
    C
    Both Y and Z will be doubled.
    D
    Y will be doubled but Z will remain same
  • In photoelectric effect the maximum kinetic energy of electrons emitted from the metal surface depends upon

    A
    intensity of incident radiation
    B
    frequency of incident radiation
    C
    speed of incident radiation
    D
    both intensity and frequency of incident radiation
  • Similar Questions

    Explore conceptually related problems

    Let a light of wavelength lamda and intensity 'I' strikes a metal surface to emit x electrons per second. Average energy of each electron is 'y' unit. What will happen to 'x' and 'y' when (a). lamda is halved (b) intensity I is doubled?

    When monochromatic light of wavelength 620 nm is used to illuminate a metallic surface, the maximum kinetic energy of photoelectrons emitted is 1 eV. Find the maximum kinetic energy of photoelectron emitted (in eV) if a wavelength of 155 nm is used on the same metallic surface. (hc = 1240 eV-nm)

    A photon of wavelength 5000 lambda strikes a metal surface with work function 2.20 eV calculate aTHe energy of the photon in eV b. The kinetic energy of the emitted photo electron c. The velocity of the photoelectron

    A light of wavelength 600 nm is incident on a metal surface. When light of wavelength 400 nm is incident, the maximum kinetic energy of the emitted photoelectrons is doubled. The work function of the metals is

    Light of wavelength lambda strikes a photo - sensitive surface and electrons are ejected with kinetic energy is to be increased to 2 E , the wavelength must be changed to lambda' where