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

NDA 2022 Mathematics question

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

(A)
(B)Correct
(C)
(D)

Answer: (B)

Solution

At the shadow is . At elevation the shadow is , so $θ =

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Question ID VK-029326