Question

In the experiment to trace the path of a ray of light through a rectangular glass slab, four

students A, B, C and D fixed the pins P3

and P4

in the following manner:

(A) Looked at heads of P1

and P2

while placing P3

and heads of P1

,P2

, and P3

while

placing P4



(B) Looked at feet of P1

and P2

while placing P3

and feet of P1

,P2

and P3

while placing P4

(C) Looked at head of P1 and P2

while placing P3

and feet of all the pins while placing

P3

and feet fall the pins while placing P4

(D) Looked at feet of P1

and P2 while placing P3

and heads of all the pins placing P4

.

The correct procedure is that of student is

a) A (b) B (c) C (d) D​

Answer 1

Answer:Option A is correct

The angle of incidence and the angle of emergence are almost equal.

As the light is traveling from rarer to denser optical medium, the angle of refraction will be lesser than the angle of incidence.

For different angles of incidence, the lateral displacement will remain the same.

The light will bend towards the normal when it travels from an optically rarer medium to an optically denser medium