A ray of light from a denser medium strikes a rarer medium at art angle of incidence i. The reflected and refracted rays make an angle of π/2 with each other. If the angles of reflection and refraction are r and r', then the critical angle will be
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
tan-1(sin r)
b
sin-1l(sin r)
c
sin-1(tan i)
d
sin-1 (tan r)
answer is C.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
μ=sin r'sin iBut r' + r = 90° or r' = 90° - r r' =90° - i ∴ μ=cos isin i or 1sin ic=1tan i or ic = sin-1(tan i)
A ray of light from a denser medium strikes a rarer medium at art angle of incidence i. The reflected and refracted rays make an angle of π/2 with each other. If the angles of reflection and refraction are r and r', then the critical angle will be