Jamb Physics 2019 Past Questions and Answers

Question 66:

• JAMB 2019

A car moving at 20m/s with its horn blowing (f = 1200Hz) is chasing another car going at 15m/s. What is the apparent frequency of the horn as heard by the driver being chased?

A. 1.22KHz
B. 2.40KHz
C. 8.12KHz
D. 1.22Hz

Question 67:

• JAMB 2019

Any line or section taken through an advancing wave in which all the particles are in the same phase is called the

A. Wavelength
B. Wave coast
C. Wave trough
D. Wave front

Question 68:

• JAMB 2019

In which of the points labelled A, B, C, D and E on the conductor shown would electric charge tend to concentrate most

A. A
B. B
C. C
D. E

Question 69:

• JAMB 2019

The point at which the molecules of a loaded wire begin to slide across each other resulting in a rapid increase in extension is

A. Yield point
B. Proportionality point
C. Deformation point
D. Elastic point

Question 70:

• JAMB 2019

The resultant capacitance in the figure above is

A. 0.4μf
B. 0.8μf
C. 1.8μf
D. 4.5μf