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DUAL NATURE OF RADIATION AND MATTER — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsDUAL NATURE OF RADIATION AND MATTER2 Marks
Question
Explain the photoelectric effect when the radiation is incident on different metals?
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Answer

→Metals like Zinc $( Zn )$, Cadmium (Cd) Magnesium ( Mg ) get a photoelectric effect by incidenting ultraviolet light of sufficient frequency on them.
→Some alkali metals such as Lithium (Li), Sodium (Na), Potassium (K), Cesium (Cs) and Rubidium (Rb) exhibit a photoelectric effect when exposed to visible light. These metals are called light sensitive (photosensitive) metals.

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