AIIMS 2018 Chemistry Threshold Frequency Assertion Reason Question

The assertion that the threshold frequency is the minimum frequency required for the ejection of electrons from a metal surface is false because the threshold frequency specifically refers to the minimum frequency needed to overcome the work function of the metal, not a general statement about electron ejection. The reason is also false as it incorrectly implies that both the assertion and reason are true. Options A and B are incorrect because they assert the truth of both statements, while option C incorrectly claims the assertion is true and the reason is false. Understanding the photoelectric effect clarifies that the threshold frequency is crucial for electron emission, emphasizing the relationship between frequency and energy in photon interactions with matter.