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Light of wavelength lamda falls on a met...

Light of wavelength `lamda` falls on a metal having work function hc/ `lamda`. Photoelectric effect will take place only if

A

`lamdagelamda_(0)`

B

`lamdage2lamda_(0)`

C

`lamdalelamda_(0)`

D

`lamdalelamda_(0)//2`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-DUAL NATURE OF RADIATION AND MATTER-EXERCISE-I
  1. Blue light can eject photo electron from a photo sensitive surface whi...

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  2. Intensity of light incident on a photo sensitive surface is doubled. T...

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  3. Light of wavelength lamda falls on a metal having work function hc/ la...

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  4. When orange light falls on a photo sensitive surfaces the photo curren...

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  5. A cathode of a photo electric cell is changed such that the work funct...

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  6. Stopping potential depends on

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  7. The saturation of photoelectric current depends on

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  8. A photo electric cell converts

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  9. Burglar alarm is based on

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  10. Which of the following is based on photo electricity

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  11. Photo electric effect can be explained only by assuming that light

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  12. Consider the two following statements A and B and identify the correct...

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  13. The number of electrons emitted by a surface exposed to light is direc...

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  14. In photoelectric phenomenon, the number of photo electrons emitted dep...

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  15. According to Einstein.s photoelectric equation, the plot of the KE of ...

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  16. A photo cell is illuminated by a small bright source placed lm away. W...

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  17. Statement (A): Alkali metals exhibit photo electric effect when they i...

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  18. Pick the wrong statement of the following.

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  19. Pick up the correct statements of the following. a) Threshold freque...

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  20. Statement (A): Every photon striking the metal and colliding with the ...

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