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A photosensitive metallic surface has wo...

A photosensitive metallic surface has work funtion `hv_(0)`. If photons of energy `2hv_(0)` fall on this surface the electrons come out with a maximum velocity of `4xx10^(6) m//s`. When the photon energy is increases to `5hv_(0)` then maximum velocity of photo electron will be

A

`12xx10^(6)ms^(-1)`

B

`6xx10^(6)ms^(-1)`

C

`3xx10^(6)ms^(-1)`

D

`24xx10^(6)ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
The maximum velocity of photoelectron will remain same because it doesn't depende on work function.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTRONS AND PROTONS-Exercise 1
  1. Light of wavelength 4000 Å is incident on a sodium surface for which t...

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  2. Photoelectric emission occurs only when the incident light has more th...

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  3. A photosensitive metallic surface has work funtion hv(0). If photons o...

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  4. Radiation two photons having energies twice and five times the work fu...

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  5. The work function for metals A , B and C are respectively 1.92 eV , 2....

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  6. Silver has a work function of 4.7 eV. When ultraviolet light of wavele...

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  7. The maximum kinetic energy of emitted photoelectrons depends on the......

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  8. A photosensitive metallic surface has work funtion hv(0). If photons o...

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  9. A metal surface of work function 1.07 eV is irradiated with light of w...

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  10. represents a graph of most energetic photoelectrons K(max)(in eV) and ...

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  11. Find the difference of kinetic energies of photoelectrons emitted from...

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  12. When ultraviolet light of wavelength 100 nm is incident upon silver pl...

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  13. Light of wavelength lamda strikes a photoelectric surface and electron...

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  14. The energy of a photon corresponding to the visible light of maximum w...

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  15. When a centimeter thick surface is illuminated with light of wavelengt...

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  16. The work function for Al, K and is 4.28 eV, 2.30 eV and 5.65 eV respec...

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  17. When photons of energy hv fall on an aluminium plate (of work function...

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  18. A photocell with a constannt potential differnce of V voolt across it,...

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  19. In a photoemissive cell, with exciting wavelength lambda, the faster e...

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  20. In a photoemissive cell, with exciting wavelength lambda, the faster e...

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