Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

Two glass prisms of refractive index $1.5$ and $ 1.6$ are kept in contact and a ray of light is incident on this combination of prism. The light emerges out of this combination un deviation The angle of prism of refractive index $1.6 $ is $5^{\circ}$ What is angle of prism of the other prism.

$(a)\;6^{\circ} \\ (b)\;5^{\circ} \\ (c)\;4^{\circ} \\ (d)\;3^{\circ} $

Can you answer this question?

1 Answer

0 votes
Since the ray undergoes no deviation the deviation produced by 1st must be equal to deviation produced by the 2nd $\delta_1 =\delta_2$
$(\mu_1-1)A_1= (\mu_2-1)A_2$
$(1.5-1 )A_1 =(1.6 -1)5^{\circ}$
$A_1= 6^{\circ}$
Hence a is the correct answer.
answered Jan 21, 2014 by meena.p

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, AIPMT Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App