NECO Physics · Atomic and nuclear physics
Structure of the atom: NECO Physics Past Questions and Answers
What the WAEC syllabus covers in Structure of the atom
Our summary: Models of the atom, energy levels, the photoelectric effect and X-rays.
- Models of the atom (Thomson, Rutherford, Bohr and electron-cloud (wave-mechanical) models should be discussed qualitatively. Limitations of each model. Quantization of angular momentum (Bohr).)
- Energy quantization (Energy levels in the atom. Colour and light frequency. Treatment should include the following: Franck-Hertz experiment, line spectra from hot bodies, absorption spectra and spectra of discharge lamps.)
- Photoelectric effect (Explanation of photoelectric effect. Dual nature of light. Work function and threshold frequency. Einstein's photoelectric equation and its explanation. Application in T.V., camera, etc. Simple problems may be set.)
- Thermionic emission (Explanation and applications.)
- X-rays (Production of X-rays and structure of X-ray tube. Types, characteristics, properties, uses and hazards of X-rays. Safety precautions.)
Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)). NECO questions are matched to the WAEC syllabus topic.
NECO Physics questions on Structure of the atom
- NECO 2009The phenomenon of photoelectric effect is used in the following EXCEPT
- NECO 2005The wave theory of light does not explain photoelectricity because
- NECO 2004An electron makes a transition from - 1.60 eV energy level to - 10.4eV energy level Calculate the energy loss due to the transition.
- NECO 2004Emission spectra are caused by
- NECO 2003J.J. Thomson’s model of the atom was abandoned because
- NECO 2002In an operating X-ray tube, a high p.d is applied between the cathode and the anode for the purpose of
- NECO 2002Which radiation is emitted when a beam of fast moving cathode rays is stopped by a heavy element?
- NECO 2002Which statement is NOT correct about Rutherford’s model of the atom?
- NECO 2002The phenomenon of photoelectric effect is NOT used in
- NECO 2001A metal has a work function of 3.0 eV. What is the threshold frequency of the metal when electrons are just liberated from the metal.(1 eV = 1.6 × 10-19J; h =…
- NECO 2001What gives rise to the line spectra observed in atoms?
- NECO 2000When a metal is heated to a high temperature, electrons are emitted from its surface. The process is known as
Years with Structure of the atom questions in DeeepSolve's question bank
From the past questions DeeepSolve holds, not a count of everything the exam body has set.
- 2009
- 2005
- 2004
- 2003
- 2002
- 2001
- 2000