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17. Photons with energy of 6.5 eV are incident on a metal surface with a 2.3 eV work function and electrons are emitted. What is the stopping potential (in eV) for these electrons? A) 8.8 B) 6.5 C) 4.2 D) 2.3 E) None of these 3 points] 18. Rank the charges (left, middle and right) according to the magnitude of the net electric force they experience, from largest to smallest. A) Left> Middle > right B) Middle > Left> right C) Right> left> middle D) Right> middle > left E) Middle > right> left .Q +Q [3 points]Please answer and explain al

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co-that, liinerie enersd Emid clecoons os R= 4.2eV O42 ⑩ force on-test charge: Ains O a ta C on middle CA Seyie on vight: FL

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