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CBSE Class 10 Answered

a ray of light is incident on a glass slabat an angle of 45.
Asked by | 03 May, 2008, 05:41: PM
answered-by-expert Expert Answer

Here angle of incidence is 45degree

refractive index = 1.6

angle of refraction =?

we know that  n = sin i / sin r

or                      1.6 = sin45ο /sin r = .7071/ sinr

or                     sin r = .7071 / 1.6

  or                       r = 26.2ο

thus angle of refraction  = 26.2ο

regards

toppersexpert

 

                           

Answered by | 26 May, 2008, 01:16: AM

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