alleryWho explained the photoelectric effect in 1905?
AFaraday
BRutherford
CMaxwell
DEinstein
Answer & Solution
Correct answer: D. Einstein
1. Wave theory could not explain the threshold or the time lag.
2. A radically new picture of radiation was proposed.
3. Albert Einstein gave it in 1905.
4. So the answer is Einstein.
_Source: syllabus Physics, Ch 11 'Dual Nature of Radiation and Matter'_
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