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How does electromagnetic radiation behaves as particle as well as wave?

How does electromagnetic radiation behaves as particle as well as wave?

Grade:12

1 Answers

Mukesh Sharma
askIITians Faculty 43 Points
7 years ago
electromagnetic wave behaves as particle---
This is demonstrated by the photoelectric effect. Light is shined on a piece of metal, causing electrons to be ejected. Classical theory said that E of ejected electron should increase with increase in light intensity---not observed. No ejected electrons are observed until light of high enough frequency. Number of electrons ejected depends on light intensity.


elecromagnetic wave behaves as wave --
when it reflects or bounces off of an obstacle. Light will also behave as a wave when it passes through another medium, causing refraction. Light that changes direction or diffracts will also behave as a wave.

Thanks and Regards
askIITians faculty
mukesh sharma

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