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Light from balmer series of hydrogen is able to eject photoelectron from a metal. What can be the maximum work function of the metal?

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Any radiation in the ultraviolet region of hydrogen spectrum is able to eject photoelectrons from a metal. What should be the maximum value of threshold frequency for the metal?

Wavelengths belonging to Balmer series lying in the range of 450 nm to 750 nm were used to eject photoelectrons from a metal surface whose work function is 2.0 eV. Find ( in eV ) the maximum kinetic energy of the emitted photoelectrons. ("Take hc = 1242 eV nm.")

The surface of a metal is illuminated with light of wavelength 400 nm. The kinetic energy of the ejected photoelectrons was found to be 1.68 eV. What is the work function of the metal ? [ hC=1240 eV*nm ]

Light of wavelength 4000 Å is incident on a metal surface. The maximum kinetic energy of emitted photoelectron is 2 eV. What is the work function of the metal surface ?

A light source of wavelength lambda illuminates a metal and ejects photoelectron with (KE)^(max) = 1 eV. Another light source of wave length (lambda)/(3), ejects photoelectrons from same metal with (KE)^(max)=5 eV. Find the value of work function (eV) of metal.

The surface of a metal is illuminted with the light of 400 nm The kinetic energy of the ejection photoelectron was found to be 1.68 eV The work function of the metal is :

The surface of a metal illuminated with the light of 400 nm . The kinetic energy of the ejected photoelectrons was found to be 1.68 eV . The work function of the metal is : (hc=1240 eV.nm)

The threshold wavelength for emission of photoelectrons from a metal surface is 6xx10^(-7)m .The work function of the material of the metal surface is.

PHYSICS GALAXY - ASHISH ARORA-PHOTOELECTRIC EFFECT AND MATTER WAVES-Unsolved numerical problems
  1. Light from balmer series of hydrogen is able to eject photoelectron fr...

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  2. A photocell is operating in saturation mode with a photocurrent 4.8 mA...

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  3. Photo electrons are liberated by ultraviolet light of wavelength 3000 ...

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  4. Lithium has a work function of 2.3eV. It is exposed to light of wavele...

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  5. A parallel beam of monochromatic light of wavelength 663 nm is incide...

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  6. Ultraviolet light of wavelength 800 A and 700 A when allowed to fall ...

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  7. The work functin of aluminium is 4.2 eV. Calcualte the Kinetic energy ...

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  8. What potential difference must be applied to stop the fastest photoele...

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  9. A sphere of radius 1.00 cm is placed in the path of a parallel beam of...

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  10. Find the frequency of light which ejects electrons from a metal surfac...

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  11. state whether the following statements are TRUE or FALSE, giving reaso...

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  12. A point istropic light source of power P = 12 watt is located on the a...

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  13. A uniform monochromatic beam of light of wavelength 365xx10^(-9)m and ...

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  14. Light of wavelength 180 nm ejects photoelectrons from a plate of met...

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  15. Suppose the wavelength of the incident light is increased from 3000 Å ...

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  16. When a metal plate is exposed to a monochromatic beam of light of wave...

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  17. The energy needed to detach the electron of a hydrogen like ion in gro...

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  18. A stationary hydrogen atom emits a photon corresponding to first line ...

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  19. In an experiment tungsten cathode which has a threshold wavelength 230...

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  20. Electrons with maximum kinetic energy 3eV are ejected from a metla sur...

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