Waec Physics 2010 Past Questions and Answers

Question 26:

• WAEC 2010

A certain wave has a speed of 20ms^-1. If the frequency of the wave is 0.25Hz, calculate the distance between successive crests of the wave

A. 5.0m
B. 40.0m
C. 50.0m
D. 80.0m

Question 27:

• WAEC 2010

The ability of a wave to spread around corners is called

A. Polarisation
B. Dispersion
C. Diffraction
D. Reflection

Question 28:

• WAEC 2010

The following devices use plane mirrors in their operations, except

A. Periscope
B. Sextant
C. Kaleidoscope
D. Binoculars

Question 29:

• WAEC 2010

When an object is placed at the principal focus of a concave mirror, the location of the image formed is

A. Between principal focus and pole
B. Between principal focus and centre of curvature
C. At infinity
D. At centre of curvature

Question 30:

• WAEC 2010

From the diagram, the correct equation for the refractive index n of the medium is

A. N = tan i
B. N = \(\frac{sin i}{sin 90^o}\)
C. N = \(\frac{sin i}{cos (90^o - i)}\)
D. N = sin 90^oC