ICSE BoardEnglish MediumSTD 8PHYSICSLight Energy1 Mark
Question
State the laws of refraction.
✓
Answer
The two laws of refraction are given as follows.
$a.$ The incident ray, the normal at the point of incidence and the refracted ray all lie on the same plane.
$b.$ For a given pair of media of different densities, the ratio of the sine of angle of incidence to the sine of angle of
refraction is always a constant, that is,
$\frac{\sin i}{\sin r}=$ constant
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.