if a man standing at a platform 3 metres above the surface of a lake observes a cloud and its reflection in the lake then the angle of elevation of the cloud is equal to the angle of depression of its reflection
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45° is the answer for your question
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bcoz let distance between cloud and surface of water is x. then the distance between the cloud and its reflection will be 2x. but from the eye of the person the two clouds (cloud and its reflecton) are not at same distance... the answer cauld have been true if the eye of the person would have been on surface of water
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