A ray of light passing through a prism P suffers minimum deviation in the equiateral prism P. If additional prisms Q and R of identical shape and of the same material as P are now added to P, as shown in the figure. The ray will now suffer

Same deviation as before

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Greater deviation

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Lesser deviation

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No deviation

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Solution

The correct option is A Same deviation as before
They will suffer the same deviation because the net deviation caused by the prisms Q and R will be zero as they will cancel out each other's deviation

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Similar questions

P .

Q

R

P

30^{\circ}, 60^{\circ}

90^{\circ}

30^{\circ}

What path does a ray of light travel when it suffers minimum deviation while passing through an equilateral prism?

34^{o}

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