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In a photoelectric experiment, a graph of maximum kinetic energy ( KE _ ) against the frequency of incident radiation (v) is plotted. If A and B are the intercepts on the X and Y axis respectively the Planck's constant is given by

Options

  1. AA+B
  2. BB A
  3. CA B
  4. DA B

Correct answer

B. B A

Step-by-step solution

Kinetic energy is given by (K.E.) )_ =h v-h v₀ Comparing y = mx + c We get x -intercept when (K.E. )_ =0 , i.e., h v- h v₀=0 Or v=v₀= A We get y-intercept when v=0 ( K.E. )_ =- h v₀= B | B A |= h v ₀ v ₀ = h

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