MHT CET · Physics · Semiconductors
I-V characteristics of LED is shown correctly by graph
- A d
- B b
- C a
- D c
Answer & Solution
Correct Answer
(B) b
Step-by-step Solution
Detailed explanation
The I-V characteristic of an LED (Light Emitting Diode) is similar to that of a p-n junction diode. It shows a very low current in reverse bias and a significant current increase only after a certain forward threshold voltage (turn-on voltage) is applied. Graph 'b' correctly depicts this behavior: negligible current for negative voltage and very small positive voltage, followed by a sharp increase in current once the forward voltage exceeds the threshold.
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