please-help-why-is-it-not-advisable-to-use-a-small-angle-of-incidence-when-performing-experiment-on-refraction-in-a-rectangular-prism-

Question Number 35876 by NECx last updated on 25/May/18

p l e a s e h e l p

w h y i s i t n o t a d v i s a b l e t o u s e a

s m a l l a n g l e o f i n c i d e n c e w h e n

p e r f o r m i n g e x p e r i m e n t o n r e f r a c t i o n

i n a r e c t a n g u l a r p r i s m ? ? ? ?

Commented by tanmay.chaudhury50@gmail.com last updated on 26/May/18

i n s e a r c h o f t r u e a n s w e r

Commented by ajfour last updated on 26/May/18

l e s t i t d o e s n o t u n d e r g o t o t a l

i n t e r n a l r e f l e c t i o n . .

Commented by tanmay.chaudhury50@gmail.com last updated on 27/May/18

y e s y o u a r e r i g h t \dots

l e t s a y m a t h e m a t i c a l l y

\frac{l i m}{i \to {(i_{θ})}_{c}} t h e n r e f r a c t i o n \to T o t a l i n t e r n a l

r e f l e c t i o n {(i_{θ})}_{c} = c r i t i c a l a n g l e

w h e n

i \to {(i_{θ})}_{c} t h e n r e f r a c t i o n \to T o t a l i n t e r n a l

r e f l e c t i o n

t h e v e r y p u p o s e t o c h e c k t h e r e f r a c t i o n

p r o p e r t y o f l i g h t c a n n o t b e e x p e r i m e n t e d

a s m o s t o f l i g h t e n e r g y g e t s r e f l e c t e d i n

s e c o n d m e d i u m m i n i m u m e n e r g y p e r f o r m

r e f r a c t i o n .