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Photoelectric emission occurs only when ...

Photoelectric emission occurs only when the incident light has more than a certain minimum

A

wavelength

B

intensity

C

frequency

D

power

Text Solution

Verified by Experts

The correct Answer is:
C
By the concept of threshold minimum frequency needed for photoelectric emission.
`(1)/(2)mv^(2)=h(v-v_(0))`
`v ge v_(0)`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTRONS AND PROTONS-Exercise 1
  1. Ultraviolet light of wavelength 300nn and intensity 1.0Wm^-2 falls on ...

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  2. Light of wavelength 4000 Å is incident on a sodium surface for which t...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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