MHT CET202123 Sep 2021Morning ShiftPhysicsRay OpticsActual
A glass slab has refractive index ' ' with respect to air and the critical angle for a ray of light in going from glass to air is ' ' If a ray of light is incident from air on the glass with angle of incidence ' ', then the corresponding angle of refraction is
Options
- A⁻¹ ( 1 )
- B⁻¹ ( 1 )
- C⁻¹ ( 1 ^2 )
- D90^
Correct answer
C. ⁻¹ ( 1 ^2 )
Step-by-step solution
In the first case is the critical angel Hence, = 1 In the second case, r = aligned & r= & r= 1 ^2 & r= ( 1 ^2 ) aligned