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Q. $V$-$I$ characterstics of $LED$ is shown correctly by graph

MHT CETMHT CET 2019

Solution:

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Since, an LED is forward biased diode, so its characteristics are those of forward bias, i.e., Here, option (a) is characteristics of a diode in forward and reverse bias. Option (c) $\rightarrow$ characteristics of solar cell. Option (d) $\rightarrow$ reverse bias characteristics 1 drawn in first quadrant can be photodiode or Zener diode.