Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Photodiodes are used in forward bias usually for measuring the light intensity. Reason R: For a p - n junction diode, at applied voltage V the current in the forward bias is more than the current in the reverse bias for V z > ± V ≥ V 0 where V 0 is the threshold voltage and V z is the bre

Step-by-step solution

Photodiodes are operated in reverse bias condition. The change in saturation reverse current in a photodiode with reverse bias is directly proportional to the change in light intensity, thus can be precisely measured. Current in forward bias (for applied voltage V ≥ V 0 ) is always greater than current in reverse bias (for V ≤ V z ) in a p - n junction diode. Hence, Assertion if false but Reason is true.