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NDA Math Heights and Distance

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Question : 8

Total: 27

The shadow of a tower becomes x metre longer, when the angle of elevation of sun changes from 60∘ to θ. If the height of the tower is √3x metre, then which one of the following is correct?

0<θ<30∘
30∘<θ<45∘
45∘<θ<60∘
60∘<θ<90∘

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