Question

Sapna draws a thick straight line in ink, over a sheet of white paper placed on a Table.
She placed a glass slab over the line in such a way that one of its edges makes an angle with the line.
When she looked at the portion of the line under the slab from the sides, she observed that the line under the glass slab appear to be bent at the edges.
Next, she placed the glass slab such that it was normal to the line and observed again.
While looking at the line from the top of the glass slab, the part of the line, beneath the slab, appear to be raised.
In given activity Sapna made following observations : (i) ∠ i = ∠ e (ii) ∠r = ∠i (iii) ∠ r = ∠ e
(iv) emergent ray is parallel to refracted ray but shifted sideward.
Which of the observations are correct?
a) Both i and ii b) both ii and iv c) both i and iv.

Answer 1

Explanation:

it is option A both 1 and 2