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NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
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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 $\sqrt{3}x$ metre, then which one of the following is correct ?
A
0 < θ < 30°
B
30° < θ < 45°
C
45° < θ < 60°
D
60° < θ < 90°
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