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A light beam is traveling from Region I ...

A light beam is traveling from Region I to region IV (refer figure). The refractive indices in Region I, II, III, and IV are `n_(0), n_(0)//2,n_(0)//6 and n_(0)//8` , respectively. The angle of incidence `theta` for which the beam just misses entering Region IV is

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Knowledge Check

  • Let P(n): 2^(n) lt n! , then the smallest positive integer for which P(n) is true is: (i) 1 (ii) 2 (iii) 3 (iv) 4

    A
    1
    B
    2
    C
    3
    D
    4

  • In the figure, the point A(m, n) lies in Quadrant II as shown. In which region is the point B(n, m) ?

    A
    Quadrant I
    B
    Quadrant II
    C
    Quadrant II
    D
    Quadrant IV