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The threshold ffequency for a metallic surface corresponds to an energy of 6.2 eV, and the stopping potential for a radiation incident on this surface 5V. The incident radiation lies in 1) X ray region 2) Ultra violet region 3) infra red region 4) visible region


The threshold ffequency for a metallic surface corresponds to an energy of 6.2 eV, and the stopping potential for a radiation incident on this surface 5V.  The incident radiation lies in
 
1) X ray region    2) Ultra violet region    3) infra red region
 
4) visible region


Grade:upto college level

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