logo

Ask Questions, Get Answers

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

A ray of light is incident at an angle of $20^{\circ}$ to the normal. What is the deviation caused due to reflection?

$(a)\;20^{\circ} \\ (b)\;80^{\circ} \\ (c)\;120^{\circ} \\ (d)\;140^{\circ} $

Can you answer this question?
 
 

1 Answer

0 votes
The original path of light is AC.
The reflected ray deviates from its original path by $\delta =180 -(20+20)$
$\qquad=140 ^{\circ}$
Hence d is the correct answer.
answered Jan 15, 2014 by meena.p
edited Jul 28, 2014 by meena.p
 

Related questions

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