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If the distance of 100 Watt lamp is incr...

If the distance of 100 Watt lamp is increased from a photocell, the saturation current i in the photo cell varies with distance d as

A

`i prop d^(2)`

B

`i prop d`

C

`i prop d^(-1)`

D

`i prop d^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`i prop I prop 1//r^(2)`
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CP SINGH-PHOTOELECTRIC EFFECT-EXERCISES
  1. The threshold wavelength for photoelectric emission from a material ...

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  2. A photoelectric cell is illuminated by a point source of light 1 m awa...

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  3. If the distance of 100 Watt lamp is increased from a photocell, the sa...

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  4. A point source causes photoelectric effect from a small metal plate. W...

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  5. When a monochromatic point source of light is at a distance of 0.2 m...

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  6. The collector plate in an experiment on photoelectric effect is kept v...

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  7. The electric field associated with a light wave is given by E= E0 sin...

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  8. A beam of light of wavelength lambda is incident on a metal having wor...

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  9. A photon of energy E ejects a photoelectron from a metel surface whose...

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  10. A monochromatic light of wavelength lambda is incident on an isolated ...

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  11. Photoelectric effect experiments are performed using three different m...

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  12. The graph between 1//lambda and stopping potential (V) of three metals...

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  13. The figure shows a plot of photo current versus anode potential for a ...

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  14. Which of the following is correct regarding de-Broglie wavelength?

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  15. de-Broglie wavelength associated with an electron accelerated through ...

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  16. An electron of mass me and a proton of mass mp are accelerated through...

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  17. A proton and an electron are accelerated by the same potential differe...

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  18. In which of the following cases the heavier of the two particles has a...

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  19. If the kinetic energy of the particle is increased to 16 times its pre...

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  20. The de - Broglie wavelength of a neutron at 27 ^(@) C is lambda. What ...

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