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The shadow of a tower standing on a level plane is found to be 30 m longer when the Sun's altitude changes from 60° to 45°. The height of the tower is    (SSC CGL 2014)
  • a)
    15 (3 + √3) m
  • b)
    15 (√3 + 1) m
  • c)
    15 (√3 - 1) m
  • d)
    15 (3 - √3) m
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The shadow of a tower standing on a level plane is found to be 30 m lo...

In ΔABC, tan60° = h/x
x = h/√3...(1)


Putting value of x from (1)
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The shadow of a tower standing on a level plane is found to be 30 m longer when the Suns altitude changes from 60° to 45°. The height of the tower is (SSC CGL 2014)a)15 (3 + √3) mb)15 (√3 + 1) mc)15 (√3 - 1) md)15 (3 - √3) mCorrect answer is option 'A'. Can you explain this answer?
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