Calculate the energy of photons having wavelength, 5\times 10^{-7} {\m} falls on a metal surface of work function, 3.4\times 10^{-19} {\J}

Correct Answer is : 3.97×10−19J

Manipal Entrance Test 2016 Chemistry Paper

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Calculate the energy of photons having wavelength, 5×10−7m falls on a metal surface of work function, 3.4×10−19J

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