The kinetic energy of photo electron emitted on irradiating a metal surface with frequency ‘ υ ’ is related by KE = h υ -IE.The plots of KE versus incident frequency shows:
A) A straight line with slope equal to Planck’s constant.
B) A straight line with intercept on x-axis equal to the product of threshold frequency and Planck’s constant.
C) A straight line with extrapolated intercept on y-axis equal to ionization energy.
D) A straight line with intercept on x-axis equal to threshold frequency
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Answer:
c is the correct answer
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