Home
Class 12
PHYSICS
When a certain photosensistive surface i...

When a certain photosensistive surface is illuminated with monochromatic light of frequency v, the stopping potential for the photo current is `-V_(0)//2`. When the surface is illuminated by monochromatic light of frequency `v//2`, the stopping potential is `-V_(0)`. The threshold frequency gor photoelectric emission is :

A

`(5v)/3`

B

`(3v)/3`

C

`4/3v`

D

2v

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 41

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

  • NTA NEET SET 43

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

When a certain metal surface is illuminated wth light of frequency v, the stopping potential for photoelectric current is V_(0) . When the same surface is illumiinated by light of frequency (v)/(2) , the stopping potential is (V_(0))/(4) . The threshold frequency ofr photoelectric emissiohn id

When a certain metallic surface is illuminated with mono chromatic light of wavelength lambda , the stopping potential for photoelectric current is 3V_(0) . When 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.

When a certain metallic surface is illuminated with monochromatic light of wavelength lambda , the stopping potential for photo electric current is 6 v_(0) . When the same surface si illuminated with light of wavelength 2 lambda , the stopping potential is 2v_(0) . The threshold wavelength of this surface for photoelectric effect is -

When a certain metallic surface is illuminated with monochromatic light of wavelength lamda , the stopping potential for photoelectric current is 3V_0 and when the same surface is illuminated with light of wavelength 2lamda , the stopping potential is V_0 . The threshold wavelength of this surface for photoelectrice effect is

When a metallic surface is illuminated by a monochromatic light of lamda the stopping potential for photoelectric current is 4V_(0) when the same surface is illuminated by light of wavelength 3 lamda the stopping potential is V_(0) The threshold wavelength for this surface for photoelectric effect is -

When a metallic surface is illuminated with monochromatic light of wavelength lambda stopping potential for photoelectric current is 3 V_(0) . When the same metal surface Illuminated with a light of wavelength 2lambda , the stopping potential is V_(0) The threshold wavelength for the surface is

When a piece of metal is illuminated by monochromatic light of wavelength lambda, then stopping potential is 3V_(s) . When the same surface is illuminated by the light of wavelength 2lambda , then stopping potential becomes V_(s) . The value of threshold wavelength for photoelectric emission will be

When a certain metallic surface is irradiated with monochromatic light wavelength lambda , the stopping potential for photoelectric current is 3 V_(0) . When the same surface is irradiated with light of wavelength 2 lambda , the stopping potential is V_(0) The threshold wavelength for the given surface is

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

When a piece of metal is illuminated by monochromatic light of wavelength lambda then the stopping potential for photoelectric current is 2.5 V_0 . When the same surface is illuminated by light of wavelength 1.5 lambda , then the stopping potential becomes V_0 . Find the value of threshold wavelength for photoelctric emission.

NTA MOCK TESTS-NTA NEET SET 42-PHYSICS
  1. If the mass defect of .(5)B^(11) is 0.081 u, its average binding energ...

    Text Solution

    |

  2. A radioactive sample S1 having an activity of 5muCi has twice the numb...

    Text Solution

    |

  3. The potential energy of a particle executing S.H.M. is 2.5 J, when its...

    Text Solution

    |

  4. A simple pendulum has time period (T1). The point of suspension is now...

    Text Solution

    |

  5. If rn is the radius of n^(th) orbit of hydrogen atom , then the relati...

    Text Solution

    |

  6. When a certain photosensistive surface is illuminated with monochromat...

    Text Solution

    |

  7. An iron bar of length 10 m is heated from 0^@C " to " 100^@C. If the c...

    Text Solution

    |

  8. Water rises to a height of 16.3 cm in a capillary of height 18 cm abov...

    Text Solution

    |

  9. An equiconvex lens is cut into two halves along (i) XOX^(') and (ii) Y...

    Text Solution

    |

  10. Two thin lenses have a combined power of +9D.When they are separated b...

    Text Solution

    |

  11. Three identical rods, each of mass m and length l, form an equaliteral...

    Text Solution

    |

  12. A hollow cylinder with inner radius R. Outer radius 2R mass M is rolli...

    Text Solution

    |

  13. A n-p-n transistor conducts when

    Text Solution

    |

  14. A large parallel plate capacitor, whose plates have an area of 1m^2 an...

    Text Solution

    |

  15. A steel wire , of uniform area 2mm^2 , is heated up to 50^@C and is s...

    Text Solution

    |

  16. Number of particles is given by n=-D(n(2)-n(1))/(x(2)-x(1)) crossing a...

    Text Solution

    |

  17. A parallel beam of electrons , travelling in x - direction , falls on ...

    Text Solution

    |

  18. A light of wavelength 6000Å is incident on a single slit . First minim...

    Text Solution

    |

  19. Two tuning forks A and B are sounded together and it results in beats ...

    Text Solution

    |

  20. A star is moving away from earth and shift in spectral line of wavelen...

    Text Solution

    |