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A metal a metal surface of Threshold frequency 5.3 into 10 to the power of  14 per second is exposed to a Proton of radiation having energy 3.5 into 10 to the power of minus 19 joule unit exhibit Proton electric effect

Asked by hemanttkumarr 22nd July 2017, 8:38 PM
Answered by Expert
Answer:
 
Threshold space Frequency space equals straight nu to the power of ring operator space equals space 5.3 space cross times space 10 to the power of 14 space straight s to the power of negative 1 end exponent Minimum space amount space of space energy space required space to space eject space the space electron space from space metal space equals space 6.63 space cross times space 10 to the power of negative 34 end exponent space cross times space 5.3 space cross times space 10 to the power of 14 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 3.52 space cross times space 10 to the power of negative 19 end exponent space straight J The space photon space of space radiation space has space less space energy space than space 3.52 space cross times space 10 to the power of negative 19 end exponent space straight J comma For space photoelectric space effect colon space straight nu to the power of ring operator space less than space straight v But space in space this space case space it space is space space straight nu to the power of ring operator space greater or equal than space straight v It space will space not space exhibit space photoelectric space effect.
Answered by Expert 24th July 2017, 1:24 PM
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