Question

while doing a experiment to trace the path of a ray of light through a triangular glass prism a student is not getting the ray of emergent in a straight line. The probable reason for that may be:
A) He did not mark the boundary of prism
B)While performing experiment prism got displaced from it's original position
C) pins used to trace the path were not exactly vertical
D) pins used to trace the path were not exactly in straight line
Correct answer is:
i) A only ii)B only iii)C and D iv)all

Answer 1

B IS THE CORRECT OPTION

Answer 2

heya
option D i.e all would be the answer