Page 525 - SUBSEC October 2017_Neat

UNIT 1
MODULE 2: OSCILLATIONS AND WAVES (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

Properties of Waves (cont’d)

Students should be able to:

2.15. explain the terms
superposition and
interference of waves;

2.16. state the conditions Use a simple Young’s slit
necessary for two-source interference experiment
interference fringes of for light or microwaves and
waves to be observed; two speakers for sound.

2.17. discuss the principles Constructive and
of interference and destructive interference.
diffraction as applied to
waves;

2.18. use the approximation

= to solve

problems;

2.19. use the expression For two-source
= () for interference and for
interference and diffraction grating (a=slit
diffraction (a=slit spacing); spacing).

2.20. use the diffraction Use the same activity for
grating to determine the Specific Objective 2.16.
wavelength and frequency
of light waves;

2.21. discuss the nature of light
as electromagnetic
radiation with reference to
its diffractive properties;

2.22. list the orders of Include range of
magnitude of the wavelengths of visible light.
wavelengths of the e-m
spectrum;

CXC A16/U2/17 25