Monday

December 22, 2014

December 22, 2014

Posted by **geet** on Tuesday, June 17, 2014 at 5:52am.

- physics -
**MathMate**, Tuesday, June 17, 2014 at 7:13amAngles of incidence and refraction are angles measured from the normal.

If n represents the refractive index between air and the medium, the equation that governs the relationship between them is

n=sin(θi)/sin(θr)

which gives the value of θr as

θr=sin^{-1}(sin(θi)/n)

Since n>1 for the media named in the question, the refracted ray would bend towards normal.

Example calculation:

Take n=1.33 for water.

Angle of incidence, θi=30°

Angle of refraction

θr=sin^{-1}(sin(θi)/n)

=sin^{-1}(sin(30)/1.33)

=sin^{-1}(.3836)

=22.56°

Deviation

= 30-22.56°

=7.44°

Review your class notes and/or textbook if it is still not clear.

**Answer this Question**

**Related Questions**

Physics - A prism, made of glass of refractive index 1.50, has two plane faces ...

Physics - The light ray strikes the hypotenuse of the prism at an angle of ...

physics - Find angle of refraction through a 60° triangular prism of edge length...

physics - as light passes from air to water vi/vr=4/3 find the angle of ...

Science - Compare the angle of refraction with the angle of incidence for all ...

college physics - A ray of light traveling in air strikes the midpoint of one ...

Physics Word Problem - using Snell's Law (sin(theta1)/sin(theta2) = v1/v2 where...

Physics Word Problem - using Snell's Law (sin(theta1)/sin(theta2) = v1/v2 where...

Physics - Trace by drawing the path of a ray of light shown in 90 degrees. This ...

physics - 1.A beam of light passes through the air and enters a diamond at an ...