Question

1.Encircle the correct option which explains the reasons for getting on virtual and upright image in aplane mirror.
1).Regular reflection
2).Irregular reflection
3).Multiple reflection
4).Internal reflection





2.How are two mirrors placed in a periscope? Circle correct option.
1).Parallel to each other.
2).Perpendicular to each other.
3).Making angle 45° with each other.
4).Making angle 60°with each other.

Answer 1

regular refection and making angle 45 with each other