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1. lost of energy of an electron resultsin A. absorption of a photon C. formation of photon B. emission of a photon D. destruction of a photon 2. When a charge is accelerated through a potential difference V, it Kinetic energy A. decrease B. increases C. remains the same D. varies depending on the resistance 3. Electrons show diffraction effects because their de Broglie wavelength is similar to A. Spacing between atomic layer B. Number of atomic laver C. Nature of atomic layer D. Position of atomic layer

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