Problem Involving Refraction Of Light

[Aristocrat]

Homework Statement

A searchlight on a yacht is being used at night to illuminate a sunken chest. At what angle of incidence should the light be aimed if the real depth is 3.3m and the distance between the chest and the normal is 2.0m?

Relevant Equations

Under refraction of light

N1sintheta

 

[sysprog]

Please take it easy with the urgency, and please make a substantial attempt to solve the problem, and please show your work. To learn more, so that you can answer your question, please read the relevant parts of the textbook that supplied the question. You could also do a search on 'refractive index of water' and consider whether fresh water differs from seawater in this regard.

 

[member 587159]

Why is it urgent? Is this graded homework or a test you are taking?

 

[PeterDonis]

Moderator's note: Thread title changed to be descriptive of the problem being asked about. @Aristocrat, please note that we do not support "urgent" requests for help. Everyone here is a volunteer, posting in their free time.