1
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

The height of the chimney when it is found that on walking towards it 50 m in the horizontal line through its base, the angle of elevation of its top changes from 30$$^\circ$$ to 60$$^\circ$$ is :

A
25 m
B
25$$\sqrt2$$ m
C
25$$\sqrt3$$ m
D
None of these
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