Grade 12Electrostatics

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

Bipul Jee

12 Years agoGrade 12

1 Answer

Mukesh Sharma

12 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.

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