Multiple Choice Question LIV — task. Science CBSE, Class 10.

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The X−Z plane separates two media A and B of refractive indices

$\mu_A\ =\ 1.5$ and

$\mu_B\ =\ 2$ . A ray of light travels from A to B, its direction in two media are given by unit vectors.

$\hat{u_A}\ =\ \hat{ai}\ +\ \hat{bj}$ and

$\hat{u_B}\ =\ \hat{ci}\ +\ \hat{dj}$ respectively, then:

$\frac{a}{c}\ =\ \frac{3}{4}$
$\frac{b}{d}\ =\ \frac{3}{4}$
$\frac{a}{c}\ =\ \frac{4}{3}$
$\frac{b}{d}\ =\ \frac{4}{3}$

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