In Fig. 4.63, PQ and PR are the two light rays emerging from an objec

1.	In Fig. 4.63, PQ and PR are the two light rays emerging from an object P. The ray PQ is refracted as QS. (a) State the special name given to the angle of incidence ∠PQN of the ray PQ. (b) What is the angle of refraction for the refracted ray QS? (c) Name the phenomenon that occurs if the angle of incidence ∠PQN is increased. (d) The ray PR suffers partial reflection and refraction on the water-air surface. Give reason. (e) Draw in the diagram the refracted ray for the incident ray PR and hence show the position of image of the object P by the letter P' when seen vertically from above.
Answer» In Fig. 4.63, PQ and PR are the two light rays emerging from an object P. The ray PQ is refracted as QS. (a) State the special name given to the angle of incidence $∠ P Q N$ of the ray PQ. (b) What is the angle of refraction for the refracted ray QS? (c) Name the phenomenon that occurs if the angle of incidence $∠ P Q N$ is increased. (d) The ray PR suffers partial reflection and refraction on the water-air surface. Give reason. (e) Draw in the diagram the refracted ray for the incident ray PR and hence show the position of image of the object P by the letter P' when seen vertically from above.

In Fig. 4.63, PQ and PR are the two light rays emerging from an object P. The ray PQ is refracted as QS. (a) State the special name given to the angle of incidence ∠PQN of the ray PQ. (b) What is the angle of refraction for the refracted ray QS? (c) Name the phenomenon that occurs if the angle of incidence ∠PQN is increased. (d) The ray PR suffers partial reflection and refraction on the water-air surface. Give reason. (e) Draw in the diagram the refracted ray for the incident ray PR and hence show the position of image of the object P by the letter P' when seen vertically from above.

Answer»

In Fig. 4.63, PQ and PR are the two light rays emerging from an object P. The ray PQ is refracted as QS.

(a) State the special name given to the angle of incidence $∠ P Q N$ of the ray PQ.

(b) What is the angle of refraction for the refracted ray QS?

(d) The ray PR suffers partial reflection and refraction on the water-air surface. Give reason.

(e) Draw in the diagram the refracted ray for the incident ray PR and hence show the position of image of the object P by the letter P' when seen vertically from above.

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment