2017 - WAEC Physics Past Questions and Answers - page 5
The diagram above illustrates two charged bodies, X and Y seperated by a distance r. Each body has charge q and mass m. Which of the following statements about the electrostatic force \(F_{e}\) and fravitational force \(F_{g}\) acting between the bodies is correct?
The opposition offered to an alternating current in a C-R series circuit is known as
Which of the following pairs of concepts constitutes complementary variables as expressess by the Heinsberg uncertainty principle?
The nucleon number of an atom is the total number of
| n = \(\alpha\) | 0.06eV |
| E=3 | -1.6eV |
| E=2 | -3.7eV |
| E=1 | -5.5eV |
| E=0 | -10.4eV |
The energy levels in the mercury atom is illustrated in the table above. Calculate the ionisation energy of the atom.
Which of the following statements about Gamma radiation is correct? Gamma radiation can
| Radio wave | Micro wave | Infrared wave | P | Q | R | Gamma Ray |
The table above shows the components of electromagnetic spectrum in order of increaasing frequency.Which of the following sets correctly identifies P, Q, R respectively?