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Pick out the apparatus used in the experiment of the photoelectric effect from the following.

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in Physics – Class 12 by (135k points)
Pick out the apparatus used in the experiment of the photoelectric effect from the following.

(a) Electron gun

(b) Vacuum tubes

(c) Metal tubes

(d) Glass tubes

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This key question is from Experimental Study of Photoelectric Effect topic in portion Dual Nature of Radiation and Matter of Physics – Class 12

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Right choice is (d) Glass tubes

Easiest explanation: The apparatus used in the experiment of the photoelectric effect involves an evacuated glass tube. Two metal electrodes, a collector, and a metal plate are enclosed in this glass tube. This glass tube is provided with a side quartz window. The metal plate acts as the photoelectron emitter.

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