the electrons be emitted when the surface is illuminated by red light

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Jugal Kishor

Asked: January 14, 2025In: Class 12 Physics

Electrons are emitted from a photosensitive surface when it is illuminated by green light but electron emission does not take place by yellow light. Will the electrons be emitted when the surface is illuminated by (1) red light, and (ii) blue light?

(i) No electron will be emitted when illuminated by red light. (ii) Electron emission takes place with blue light. Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter Session 2024-2025.

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