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A ray of light passing from air to glass (n = 1.5)at an angle of 30.calculate the angle of refractio
Asked by | 03 May, 2008, 05:38: PM
answered-by-expert Expert Answer

Here angle of incidence is 30degree

refractive index = 1.5

angle of refraction =?

we know that  n = sin i / sin r

or                      1.5 = sin30ο /sin r = .5000/ sinr

or                     sin r = .5000 / 1.5 = .3333

  or                       r = 19.5ο

thus angle of refraction  = 19.5ο

regards

toppersexpert

Answered by | 26 May, 2008, 01:23: AM

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