Waves - Light and Sound Flashcards
1
Q
What type of wave is a light wave
A
A transverse wave and can be reflected and refracted
2
Q
What is the law of reflection
A
The angle of incidence = the angle of reflection
3
Q
What is the relationship between refractive index, angle of incidence and angle of refraction
A
n = sin i / sin r
4
Q
What is the definition of total internal reflection
A
5
Q
What is the role of total internal reflection in transmitting information along optical fibres and in prisms?
A
6
Q
What is the definition of the critical angle c
A
when the angle of refraction is exactly 90 degrees
7
Q
What is the relationship between critical angle and refractive index
A
sin c = 1/n
8
Q
What type of wave is a sound wave
A
Longitudinal, and can be reflected and refracted
