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The circuit shown is placed on vacuum. B...

The circuit shown is placed on vacuum. Both Capacitors are identical and they have the same capacitance C. light is incident on left plate of upper capacitor. When all the switches are open then the hf versus `K.E_(max)` is shown by straight line (A). In all the cases, we are measuring the `KE_(max)` when the election reaches the opposite plates. When only `S_1` the switches and `S_2` are closed, the graph becomes (B) When only `S_3` and `S_4` are closed the graph becomes (C) then the graph becomes (2) (a) What is the work function of the cathode ? (A) `E` (B) `E_1` (C) `E+E_1` (D) None of these (B) What is the value of eV? (A) `E` (B) `E_1` (c) `E+E_1` (D) None of these (C) What is value of E, ? (A) E (B) 3E/2 (C) E/2 (D) None of these.

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