a concave lens made of refractive index n2 is held in reference medium of refractive index n1. trace the path of parallel beam of light passing through the lens when
1)n1 <n2
2)n1 >n2
explain with diagram and give appropriate reason?
1.
Light ray is travelling from rarer medium to the denser medium, therefore light ray bends towards the normal.
2.
Light ray is travelling from denser to the rarer medium, therefore light ray bends away from the normal.