Question

(iv) A student suggested the following 'guidelines' to his friend for doing the experiment on
tracing the path of a ray of light passing through rectangular glass slab for three different angles
of incidence.
A. Draw the ‘outline of the glass slab at three positions on the drawing sheet.
B. Draw 'normals' on the top side of these ‘outlines' near their left end.
C. Draw the incident rays on the three ‘outlines' in the directions making angles of 30°, 45°, 60°
with the normals drawn.
D. Fix two pins vertically on each of these incident rays at two points nearly 1 cm apart.
E. Look for the images of the 'heads' of these pins while fixing two pins from the other side, to
get the refracted rays.
When he showed these 'guidelines' to his teacher, the teacher corrected and modified the
'guidelines' labelled as: (The information was insufficient or incorrect)
(a) B, C, E (b) B, D, E
(c) B, C, D (d) C, D, E.​

Answer 1

Answer:

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