Waec Physics Past Questions For Year 2017
Question 46
The nucleon number of an atom is the total number of
- A. electrons and protons
- B. electrons and neutrons
- C. neutrons minus electrons
- D. protons and neutrons
Question 47
Which of the following pairs of concepts constitutes complementary variables as expressess by the Heinsberg uncertainty principle?
- A. Momentum and time
- B. Energy and acceleration
- C. Position and momentum
- D. Velocity and Momentum
Question 48
The opposition offered to an alternating current in a C-R series circuit is known as
- A. impedance
- B. resistance
- C. reactance
- D. friction
Question 49
| Radio wave | Micro wave | Infrared wave | P | Q | R | Gamma Ray |
- A. Visible, ultraviolet, X-ray
- B. X-ray, visible, ultraviolet
- C. Ultraviolet, visible, X-ray
- D. X-ray, ultraviolet, visible
Question 50
The energy stored in a spring of stiffness constant k = 2000\(Nm^{-1}\) when extended 4cm is
- A. 0.16J
- B. 1.60J
- C. 16.00J
- D. 160.00J
