To reverse bias a photo-diode:

cathode of the detector is set at a higher electric potential than the anode.

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anode of the detector is set at a higher electric potential than the cathode.

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cathode and anode are set at the same electric potential.

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none of the above.

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Solution

The correct option is A cathode of the detector is set at a higher electric potential than the anode.
Reverse biasing a photo-diode is accomplished by setting the cathode of the detector at a higher electric potential than the anode's. In other words, applying a negative voltage to anode.

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To reverse bias a photo-diode:

The correct option is A cathode of the detector is set at a higher electric potential than the anode.Reverse biasing a photo-diode is accomplished by setting the cathode of the detector at a higher electric potential than the anode's. In other words, applying a negative voltage to anode.

The correct option is A cathode of the detector is set at a higher electric potential than the anode.
Reverse biasing a photo-diode is accomplished by setting the cathode of the detector at a higher electric potential than the anode's. In other words, applying a negative voltage to anode.