a person is standing in a room of width 200cm a plain square mirror of length 10 cm is fixed in the middle on a wall in front of the person the person looks into the mirror from distance 50cm how much width of the wall behind him will he able to see
a person is standing in a room of width 200cm a plain square mirror of length 10 cm is fixed in the middle on a wall in front of the person the person looks into the mirror from distance 50cm how much width of the wall behind him will he able to see










