Two plane mirrors are inclined at an angle of 30°.A ray of light which makes an angle of incidence of 50° with one of the mirrors,undergoes two successive reflections at the mirrors.Calculate the angle of deviation. please help....its urgent


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Question Number 37945 by NECx last updated on 19/Jun/18

$T w o p l a n e m i r r o r s a r e i n c l i n e d a t$ $a n a n g l e o f 30 ° . A r a y o f l i g h t w h i c h$ $m a k e s a n a n g l e o f i n c i d e n c e o f 50 °$ $w i t h o n e o f t h e m i r r o r s, u n d e r g o e s$ $t w o s u c c e s s i v e r e f l e c t i o n s a t t h e$ $m i r r o r s . C a l c u l a t e t h e a n g l e o f$ $d e v i a t i o n .$ $p l e a s e h e l p . . . . i t s u r g e n t$
Commented by MrW3 last updated on 20/Jun/18

Commented by MrW3 last updated on 20/Jun/18

$a n g l e o f d e v i a t i o n = 60 °$
Commented by MrW3 last updated on 20/Jun/18

Commented by MrW3 last updated on 20/Jun/18

$d e v i a t i o n a n g l e i s a l s o 60 ° .$
Commented by NECx last updated on 20/Jun/18

$p l e a s e g i v e a d i a g r a m m a t i c$ $r e p r e s e n t a t i o n . T h a n k s i n a d v a n c e .$
Commented by NECx last updated on 20/Jun/18

$i d o n t u n d e r s t a n d t h e c a l c u l a t i o n$ $h e r e$
Commented by MrW3 last updated on 21/Jun/18

Commented by MrW3 last updated on 21/Jun/18

$d e v i a t i o n a n g l e m e a n s t h e c h a n g e o f$ $d i r e c t i o n .$ $t o c a l c u l a t e i t, y o u c a n t a k e a n a n y$ $r e f e r e n c e l i n e a n d d e t e r m i n e t h e$ $a n g l e b e t w e e n t h e l i g h t r a y a n d t h e$ $r e f e r e n c e l i n e b e f o r e t h e r e f l e c t i o n s$ $a n d a f t e r t h e r e f l e c t i o n s, t h e d i f f e r e n c e$ $o f b o t h a n g l e s i s t h e n t h e r e q u e s t e d$ $d e v i a t i o n a n g l e .$
Commented by NECx last updated on 22/Jun/18

$T h a n k y o u s o m u c h . I r e a l l y$ $u n d e r s t a n d t h e c o n c e p t n o w .$
Commented by MrW3 last updated on 23/Jun/18

$n i c e t o k n o w t h a t I c o u l d g i v e y o u a$ $r e a l h e l p .$
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