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Three metals have work functions in the ...

Three metals have work functions in the ratio 2 3:4. Graphs are drawn for all connecting stopping potential and incident frequency. The graphs have slopes in the ratio

A

`2:3:4`

B

`4:3:2`

C

`6:4:3`

D

`1:1:1`

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The correct Answer is:
D
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AAKASH SERIES-DUAL NATURE OF RADIATION AND MATTER-PRACTICE EXERCISEX
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  2. Monochromatic light incident on a metal surface emits electron with K....

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  3. Three metals have work functions in the ratio 2 3:4. Graphs are drawn ...

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  4. Two photons of energies twice and thrice the work function of a metal ...

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  5. The work function of a substance is 4eV. The longest wavelength of lig...

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  6. The photo electric work function of a metal is 1 eV. Light of wave len...

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  7. When a mono chromatic point source of light is at a distance of 0.2m f...

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  8. The work function of a substance is 12.4 eV. The longest wavelength of...

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  9. A surface irradiated with light of wave length 480 nm gives out electr...

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  10. The photoelectric threshold wavelength for a certain metal is 4000A^(@...

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  11. What P.D. must be applied to stop the fastest photo electron emitted b...

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  12. The threshold frequency for photo electric effect for a metal surface ...

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  13. The work functions of metals A and B are in the ratio 1 : 2. If light ...

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  14. When a metal surface is illuminated by a light of wavelength 400nm and...

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  15. V(1) and V(2) are the stopping potentials for the incident radiations ...

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  16. A monochromatic light source is placed at a distance d from a metal su...

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  17. If the work function of a certain metal is 3.2xx10^(-19)J and is it il...

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  18. Work function of a metal is 3.0 eV. It is illuminated by a light of wa...

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  19. A metal sheet of silver is exposed to ultraviolet radiation of wavelen...

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  20. The threshold wavelength for emission of photoelectrons from a metal s...

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