A ray of light is incident at an angle of 70 degree into a medium having refractive index u. the reflected and the refracted rays are found to suffer equal deviations in opposite direction. then u equals to- - tan70 degree
- 2sin70 degree
- cosec70 degree
- none of these
A ray of light is incident at an angle of 70 degree into a medium having refractive index u. the reflected and the refracted rays are found to suffer equal deviations in opposite direction. then u equals to-
- tan70 degree
- 2sin70 degree
- cosec70 degree
- none of these
Arvind Pathak , 8 Years ago
Grade 12th pass
