Question

The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photo electron emission from this substance is approximately :

A

540 nm

B

440 nm

C

310 nm

D

220 nm

Medium

Solution

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Correct option is C)

 Work function in electron volt is  
 

Video Explanation

Solution to Question ID 642469
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Solve any question of Dual Nature of Radiation And Matter with:-

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