Physics-
General
Easy

Question

A light beam is travelling from Region I to Region IV (refer figure) The refractive index in Region I, II, III and IV are n subscript 0 end subscript comma fraction numerator n subscript 0 end subscript over denominator 2 end fraction comma fraction numerator n subscript 0 end subscript over denominator 6 end fraction text  and  end text fraction numerator n subscript 0 end subscript over denominator 8 end fraction, respectively The angle of incidence q for which the beam just misses entering Region IV is

  1. s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 3 over denominator 4 end fraction close parentheses    
  2. s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 1 over denominator 8 end fraction close parentheses    
  3. s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 1 over denominator 4 end fraction close parentheses    
  4. s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 1 over denominator 3 end fraction close parentheses    

The correct answer is: s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 1 over denominator 8 end fraction close parentheses

Related Questions to study

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.