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The work function of two metals A &B are 2eV &5eV .which of these is suitable for photocell ising visible light.give reasons

sweety , 7 Years ago
Grade 12
anser 2 Answers
Mahima Kanawat

Last Activity: 7 Years ago

Dear student ...The metal having less work function is suitable for photocell i.e.,A (2eV) because when work function is less , less energy is required to excite electrons and photo electric current is produced easily .....With Regards....Mahima...(askIITians forum expert )

Adarsh

Last Activity: 7 Years ago

The range of energy of visible light is 1.8ev to 3.1ev . So metal having work function of 2ev can be used in photocell .. 

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