Q159 / 160 · TS EAMCET 2023 (14 May Shift 1) · Physics

Which of the following statements is true about LEDs?

Correct answer
A
High operational voltage
B
Warm-up time is required
C
Bandwidth of ligint is $4000 Å-7000 Å$
D
Fast on-off switching

Solution

LED is a basic pn junction diode operator when forward biased. It has very high threshold voltage.

Hence, the correct answer is option: 'A'.

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