AP ICET 2019 Shift 1 Paper

Question : 121 of 200

Marks: +1, -0

The height of the pillar when it is found that on walking towards it 60 meters in a horizontal line through the base, the angle of elevation of its top changes from 30° to 60°, its height (in meters) is

$15√3$
$30√3$
$45√3$
$10√3$

Validate

Solution:

h={d}/{\cot α-\cot β}={60}/{√{3}-{1}/{√{3}}}=30√{3}

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