Question

while tracing a path of ray of light passing through a rectangular glass slab a student tabulated his observations as given below:

1] angle i=60`,angle r=40`angle e=61`

2] angle i=50, angle r=36, angle e=51

3] angle i=40,angle r=28 ,angle e=39

4] angle i=30,angle r=20 ,angle e=31

from the above given options which is the correct bservation?? explain briefly

Answer 1

HELLO DEAR,


angle i = 30 , angle r = 20 , angle e =31

refractive index of glass = 1.52

sin i / sin r =  1.52

sin 30 =  1.52 x sin r

0.5/1.52  = sin r

=> sin r  =  0.32

=> r = 20(approx 19)


I HOPE ITS HELP YOU DEAR,

THANKS