Question

in an experiment on tracing path of a ray of light through a rectangular glass slab, four students A, B, C. D used the following values of angle of incidence and the distance between the feet of the two pins (fixed on the incident ray): (a) (30, 45, 60 degree) and 1 cm (b) 30, 45, 60) and 6cm (c) 20, 50 , 80) an 2 cm (d) 20, 50, 80 degree) and 5cm out of these the best choices is that of student (a) A (b) B (c) C (d) D

Answer 1

correct answer is (c)
it is absolutely correct
pleaseeeeeeeeeeee mark as brainliest.