The work function for a given photosensitive surface is equal to 2·5 eV. When light of frequency v falls on this surface, the emitted photoelectrons are completely stopped by applying a retarded potential of 4·1 V. Estimate the value of frequency v of light. (Physics CBSE 2018)

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## The work function for a given photosensitive surface is equal to 2·5 eV. When light of frequency v falls on this surface, the emitted photoelectrons are completely stopped by applying a retarded potential of 4·1 V. Estimate the value of frequency v of light. (Physics CBSE 2018)

The work function for a given photosensitive surface is equal to 2·5 eV. When light of frequency v falls on this surface, the emitted photoelectrons are completely stopped by applying a retarded potential of 4·1 V. Estimate the value of frequency v of light. (Physics CBSE 2018)

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