Which best describes what happens when light traveling through air enters water at an angle?

AIt moves along straight lines in air and changes direction when it enters water.

BIt moves in a curve in air and moves in straight lines when it enters water.

CIt moves along straight lines in air and continues along the same lines when it enters water.

DIt moves in a curve in air and continues moving in the same curve when it enters water.

Question

xxkkxx2029 xxkkxx2029

24-03-2017
Physics

Answered

Which best describes what happens when light traveling through air enters water at an angle?

AIt moves along straight lines in air and changes direction when it enters water.

BIt moves in a curve in air and moves in straight lines when it enters water.

CIt moves along straight lines in air and continues along the same lines when it enters water.

DIt moves in a curve in air and continues moving in the same curve when it enters water.

Verified Answer :

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angelt1 angelt1 · Answer 1 · 2017-03-24T09:06:04-04:00

angelt1 angelt1

24-03-2017

I think it is "A'' 'It moves along straight lines in air and changes direction when it enters water.

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JemdetNasr JemdetNasr · Answer 2 · 2019-04-08T07:15:03-04:00

The correct choice is

A. It moves along straight lines in air and changes direction when it enters water.

This is because of phenomenon of refraction which a ray of light experience when it moves from one medium to another medium. The light ray bends away from the normal to the surface if it travels from denser to rarer medium. The light ray bends towards from the normal to the surface if it travels from rarer to denser medium.