Question:
For which of the following angle between two plane mirrors
Last updated: 6/1/2023
![For which of the following angle between two plane mirrors](https://media.kunduz.com/media/sug-question-candidate/20200908002653283367-2007055.jpg?h=512)
For which of the following angle between two plane mirrors the incident ray and reflected ray from t are parallel to each other for all angle of incidence 1 30 3 90 2 45 4 120