MCQ
I a.m.u. is equivalent to the energy of :
  • A
    1 eV
  • B
    14.2 MeV
  • 931 MeV
  • D
    0.693 MeV

Answer

Correct option: C.
931 MeV
(c) - 931 MeV

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A right angled prism of refractive index $\mu_1$ is placed in a rectangular block of refractive index $\mu_2$, which is surrounded by a medium of refractive index $\mu_3$, as shown in the figure, A ray of ligth 'e' enters the rectangular block at normal incidence. Depending upon the relationships between $\mu_1, \mu_2$ and $\mu_3$, it takes one of the four possible paths $'ef', 'eg', 'eh'$ or $'ei'$. $Image$

Match the paths in List $I$ with conditions of refractive indices in List $II$ and select the correct answer using the codes given below the lists :

List $I$ List $II$
$P$. $\quad e \rightarrow f$ $1.$ $\quad \mu_1>\sqrt{2} \mu_2$
$Q.$ $\quad e \rightarrow g$ $2.$ $\quad \mu_1>\mu_1$ and $\mu_2>\mu_3$
$R.$ $\quad e \rightarrow h$ $3.$ $\quad \mu_1=\mu_2$
$S.$ $\quad e \rightarrow i$ $4.$ $\quad \mu_2<\mu_1<\sqrt{2} \mu_2$ and $\mu_2>\mu_3$

Codes: $\quad \quad P \quad Q \quad R \quad S $ 

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