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VICPhysicsQuick questions
Unit 4: How have new ideas and ways of thinking developed our understanding of the physical world?
Quick questions on Atomic energy levels and emission spectra: VCE Physics Unit 4
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is wrong direction of transition?Show answer
Photon emission requires a downward transition (higher to lower level). Absorption requires an upward transition.
What is q1?Show answer
Define energy-level transition and state the relationship between transition energy and emitted photon wavelength. [2 marks]
What is q2?Show answer
An electron in a hydrogen atom drops from ( eV) to ( eV). Calculate the wavelength of the emitted photon. [3 marks]
What is q3?Show answer
Refer to sodium street lamps. (a) Calculate the energy of a nm photon in eV. (b) Determine the number of photons per second from a W lamp assuming efficiency.
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