Basic Maths and Units and DimensionsMedium
Question
A light beam is travelling from Region I to Region IV (Refer Figure). The refractive index in Regions I, II, III and IV are n0, 
and 
, respectively. The angle of incidence θ for which the beam just misses entering Region IV is
Figure:
and , respectively. The angle of incidence θ for which the beam just misses entering Region IV isFigure:
Options
A.sin-1
B.sin-1
C.sin-1
D.sin-1
Solution
Total internal reflection occurs at the interface of region III and IV.
Because mediums are parallel
n0 sin θ =
sin θ = 1/8
Because mediums are parallel
n0 sin θ =
sin θ = 1/8
Create a free account to view solution
View Solution FreeTopic: Basic Maths and Units and Dimensions·Practice all Basic Maths and Units and Dimensions questions
More Basic Maths and Units and Dimensions Questions
Identify the pair whose dimensions are equal...If energy (E), velocity (V) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface te...A beaker contains a fluid of density ρ kg / m3, specific heat S J / kgoC and viscosity η. The beaker is filled...The mechanical equivalent of heat, Joule is...A wooden block, with a coin placed on its top, floats in water as shown in figure the distance l and h are shown there. ...