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Which of the following would have highest wavelength?

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+1 vote
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in Engineering Physics II by (679k points)
Which of the following would have highest wavelength?

(a) A

(b) B

(c) C

(d) D

This question was addressed to me during an online exam.

Enquiry is from LED in division Semiconductors of Engineering Physics II

1 Answer

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Best answer
The correct option is (a) A

To explain: In the I-V characteristic of an LED, as the frequency increases, the voltage required to achieve the same current increases. Hence A would have the highest wavelength.

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