NEET Physics Question - Semiconductor Physics - P-N Junction Diode and its applications

Assertion (A): Working principle of photodiode and photocell is same.

Reason (R): Biasing circuit for photodiode and photocell is same.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Assertion (A) is false; photodiodes rely on \(p-n\) junction semiconductor physics, while photocells (e.g., photoemissive cells) often rely on the photoelectric effect. Reason (R) is also false as their biasing circuits differ significantly (e.g., photodiode often reverse biased, photocell can be forward biased or unbiased).

Rankers Physics

Photodiode and Photocell Principles

Solution:

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