refraction Flashcards
1
Q
laws of refraction
A
the incident ray, the refracted ray and the normal all lie in the same plane
the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant
2
Q
what are the 7 colours of light
A
red, orange, yellow, green, blue, indigo, violet
they form the visible spectrum and the phenomenon of splitting up white light into different colours is known as dispersion
