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The maximum kinetic energy of photoelec...

The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy `6 eV` fall on it is `4 eV` . The stopping potential , in volt is

A

2

B

4

C

6

D

10

Text Solution

Verified by Experts

The correct Answer is:
B
`K_("max") = hv - phi rArr V_(s) = (K_(max))/(e) = (4eV)/(e) = 4` volts
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ALLEN -SIMPLE HARMONIC MOTION-Exercise-01
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  2. Which one of the following is true in photoelectric emission

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  3. The maximum kinetic energy of photoelectrons emitted from a surface w...

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  4. Light of two different frequencies whose photons have energies 1eV and...

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  5. The work functions of tungsten and sodium are 5.06 eV and 2.53 eV res...

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  6. The stopping potential necessary to reduce the photoelectric current o...

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  7. For the photoelectric effect, the maximum kinetic energy E(k) of the e...

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  8. Maximum kinetic energy of photoelectron emitted is independent of ……

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  9. Photoelectric effect takes place in element A. Its work function is 2....

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  10. A certain metallic surface is illuminated with monochromatic light of ...

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  11. A photoelectric cell is illuminated by a point source of light 1m away...

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

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  13. The half life of radioactive Radon is 3.8 days . The time at the end o...

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  14. Radiation of wavelength lambda is incident on a photocell.The fastest ...

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  15. An impluse laser may be treaed as a source of phtons that are emitted ...

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  16. 1.5 mW of 400 nm light is directed at a photoelectric cell. If 0.1% of...

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  17. Let K(1) be the maximum kinetic energy of photoelectrons emitted by a ...

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  18. In a photoelectric emission, electrons are ejected from metals X and Y...

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  19. White light consisting of wavelengths 380 nm le lambda le 750 nm is in...

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  20. The de Broglie waves are associated with moving particles. These parti...

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