Question

while tracing the path of a ray of light passing through a rectangular glass slab a student tabulated his observation if in his experimrntfor two readings he takes two values of i as 40 and 50 what should be the correct values of e and r in each case​

Answer 1

i=40( in first case)

e=40(i =e)

r=40

In second case

i=50

e=50

r=50