A ray of light passes through a right angled prism as shown in the figure. State the angle incidence at the faces AC and BC are $45^{o}$ and $0^{o}$ respectively.

True

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False

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Solution

The correct option is A True
$\begin{matrix} so angle of incidence at A C = 45^{\circ} angle of incidence at B C = 0^{\circ} \end{matrix}$

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In Fig. 4.67, a ray of light PQ is incident normally on the face AB of an equilateral glass prism. Complete the ray diagram showing its emergence into air after passing through the prism. Take critical angle for glass = $42^{\circ}$ .

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A ray of light passes through a right angled prism as shown in the figure. State the angle incidence at the faces AC and BC are 45o and 0o respectively.

The correct option is A True so angle of incidence at AC=45∘ angle of incidence at BC=0∘

A ray of light passes through a right angled prism as shown in the figure. State the angle incidence at the faces AC and BC are $45^{o}$ and $0^{o}$ respectively.

The correct option is A True
$\begin{matrix} so angle of incidence at A C = 45^{\circ} angle of incidence at B C = 0^{\circ} \end{matrix}$