engineering recuitment GATE IN Test Series 2023-24 Mock Test Communication Systems Optical Sources and Detector Photodiode
The figure (a) shows a spot of light of uniform intensity 200 W/m2 and size 10 mm × 5 mm incident at the exact center of photodiodes D1 & D2. Each diode has sensitivity of 0.5 A/W and is operated in photoconductive mode. Figure (b) shows signal conditioning circuit in which there two diodes are connected. The whole setup is used to measure the displacement of spot. If the spot of light is displaced upwards by 50 um, the magnitude of the output voltage generated by the signal conditioning circuit will be _____V.
Enter numerical value using the virtual keypad. Round off where necessary.