A given ray of light suffers minimum deviatio | vedclass

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(B) The prisms $Q$ and $R$ are of the same material and have an identical shape to prism $P$. When these prisms are arranged as shown in the figure,th

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Same deviation

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(B) The prisms $Q$ and $R$ are of the same material and have an identical shape to prism $P$. When these prisms are arranged as shown in the figure,the combination of prisms $Q$ and $R$ effectively acts as a glass slab with parallel faces. $A$ light ray passing through a glass slab with parallel faces undergoes lateral displacement but no net angular deviation. Therefore,the total deviation experienced by the light ray remains the same as the deviation caused by prism $P$ alone,which is the minimum deviation.

$A$ given ray of light suffers minimum deviation in an equilateral prism $P$. Additional prisms $Q$ and $R$ of identical shape and material are now added to $P$ as shown in the figure. The ray will suffer

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