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Which of the following theories cannot be explained by classical theory?

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in Engineering Physics II by (679k points)
Which of the following theories cannot be explained by classical theory?

(a) Electron theory

(b) Lorentz theory

(c) Photo-electric effect

(d) Classical free electron theory

I got this question in final exam.

My doubt is from Free Electron Theory topic in division Semiconductors of Engineering Physics II

1 Answer

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Best answer
Correct answer is (c) Photo-electric effect

Easy explanation: Classical theory states that all free electrons will absorb energy. This theory cannot explain the photo electric effect.

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