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Question
A ray of light is incident on a plane mirror as shown in the given figure. Calculate the deviation produced in the ray.
A ray of light is incident on a plane mirror as shown in the given figure. Calculate the deviation produced in the ray.
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Solution
The correct option is B 140 degrees
We know that angle of deviation, δ=180∘−2iAngle of incidence (i) = ∠NPM−∠OPM=90∘−70∘=20∘δ=180∘−(2×20∘)=180∘−40∘=140∘
We know that angle of deviation, δ=180∘−2iAngle of incidence (i) = ∠NPM−∠OPM=90∘−70∘=20∘δ=180∘−(2×20∘)=180∘−40∘=140∘Suggest Corrections
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