Practicing Success
The cathode of a photoelectric cell is changed such that the work function changes from W1 to W2 (W1>W2). If the current before and after are i1 and i2 respectively and all other conditions remain unchanged, then which of the following is true? |
i1=i2 i1 i1>i2 W1/W2=i1/i2 |
i1=i2 |
Since the intensity of the light does not change, the photocurrent before and after remains constant. |