AIIMS 2019 Physics Photodiodes Assertion Reason Question

Option B is correct because both the assertion and the reason are true; a photodiode does convert light into electric current, and a solar cell is indeed a large-area photodiode that transforms solar energy into electrical energy. However, the reason does not directly explain the assertion, as the assertion focuses on the general function of photodiodes, while the reason specifically addresses solar cells. Option A is incorrect because, although both statements are true, the reason does not serve as a correct explanation for the assertion. Option C is incorrect because both statements are true, and option D is incorrect as both statements are factual. Understanding the distinctions between photodiodes and solar cells highlights their roles in converting light energy into electrical energy, a fundamental principle in electronics and renewable energy technologies.