MCQ
From the figure shown establish a relation between, $\mu_1, \mu_2, \mu_3.$
  • A
    $\mu_1 < \mu_2 < \mu_3$
  • $\mu_3 < \mu_2 ; \mu_3 = \mu_1$
  • C
    $\mu_3 > \mu_2 ; \mu_3 = \mu_1$
  • D
    None of these

Answer

Correct option: B.
$\mu_3 < \mu_2 ; \mu_3 = \mu_1$
b
Between $1$ and $3 $there is no deviation. Hence,

$\mu_{1}=\mu_{3}$

Between $3$ and $2$

Ray to light binds towards normal. Hence,

$\mu_{2}>\mu_{3}$

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