Waec Physics 2017 Past Questions and Answers

Question 31:

• WAEC 2017

The diagram above illustrates a wave setup between two fixed ends 4.0m apart. If the speed of the wave is 1.0\(ms^{-1}\), its wavelength and frequency respectively are

A. 1m; 0.25Hz
B. 2m; 0.25Hz
C. 2m; 0.50Hz
D. 4m; 0.50Hz

Question 32:

• WAEC 2017

Two plane mirrors are inclined at an angle 20° to each other. Determine the number of images formed when an object is placed between them.

A. 17
B. 18
C. 19
D. 20

Question 33:

• WAEC 2017

A converging lens of focal length 10cm forms an erect image three times the size of the real object. Calculate the distance between the image and the object.

A. 6.6cm
B. 11.1cm
C. 13.3cm
D. 20.0cm

Question 34:

• WAEC 2017

The inverse of the time required for a wave to complete one full cycle is called

A. Wavelength
B. Period
C. Frequency
D. Amplitude

Question 35:

• WAEC 2017

Two bar magnets are placed near each other. Which of the following diagrams correctly illustrates the magnetic field pattern formed by the pair?

A. I
B. II
C. III
D. IV