The figure shows an equilateral prism ABC and the ray QR emerging out from the prism after suffering minimum deviation. Complete the diagram to show the refracted ray PQ inside the prism and the incident ray OP on the prism. State in words how have you completed the diagram.

Open in App

Solution

•The refracted ray PQ is drawn parallel to the base BC of the prism since the emergent ray QR has suffered minimum deviation.
•After drawing normal’s on face AB of prism at P and on face AC of prism at Q, the incident ray OP is drawn such that the angle of incidence i1 is equal to the angle of emergence $i_{2}$ .

Suggest Corrections

Similar questions

In Fig. 4.67, a ray of light PQ is incident normally on the face AB of an equilateral glass prism. Complete the ray diagram showing its emergence into air after passing through the prism. Take critical angle for glass = $42^{\circ}$ .

(a) Write the angles of incidence at the faces AB and AC of the prism.

(b) Name the phenomenon which the ray of light suffers at the face AB, AC and BC of the prism.

The given diagram shows a ray of light incident on an equilateral glass prism placed in minimum deviation position. How are angle of incidence and angle of emergence related to each other in this position of the prism?