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प्रश्न
With the help of a neatly drawn labelled diagram, prove the law of reflection on the basis of Huygen’s wave theory.
संख्यात्मक
उत्तर
In triangles AOO′ & BOO′
OO′ is common.
AO′= O′B = ct or vt
∠OAO' = ∠OBO' = 90°
Hence, the two triangles are equal/congruent in all respects
∠AOO' = ∠BO'O
∴ (∠i = ∠r ) only accepted if shown correctly in the diagram.
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