Waec Physics 2014 Past Questions and Answers

Question 26:

• WAEC 2014

A transverse wave can be distinguished from a longitudinal wave by

A. Diffraction
B. Relection
C. Refraction
D. Polarization

Question 27:

• WAEC 2014

Refraction of lights differs from reflection in that, in refraction i. at least two media are involved ii. there is a change in the direction of the ray iii. the speed of the ray changes. Which of the statements above is/are correct?

A. I only
B. I ad ii only
C. Ii and iii only
D. I and iii only

Question 28:

• WAEC 2014

Which of the following relations about the focal length f_o of the objective and focal length f_e of the eye piece of a compound is correct?

A. F_o = f_e
B. F_o < f_e
C. F_o > f_e
D. F_e = 2f_o

Question 29:

• WAEC 2014

The functional difference between a lens and a mirror is that a lens

A. Reflects a beam of light while a mirror refracts it
B. Refracts a beam of light while a mirror reflects it
C. Absorbs incident rays while a mirror transmit them
D. Transmits incidents ray whle a mirror absorbs them

Question 30:

• WAEC 2014

The diagram above illustrates an electromagnetic wave travelling with speed 3.0 x 10⁸ms^-1. Calculate the wave length of the wave

A. 0.05m
B. 0.15m
C. 0.16m
D. 0.40m