Let a vertical tower A B of height 2 h stands on a horizontal ground. Let from a point P on the ground a man can see upto height h of the tower with an angle of elevation 2 \alpha. When from P, he moves a distance d in the direction of \overrightarrow{A P}, he can see the top B of the tower with an angle of elevation \alpha. If d=\sqrt{7} h, then \tan \alpha is equal to [27-Jul-2022-Shift-1]

JEE Mains 27-July-2022 Shift 1 Solved Paper

Section: Mathematics

Question : 15 of 90

Marks: +1, -0

Let a vertical tower AB of height 2h stands on a horizontal ground. Let from a point P on the ground a man can see upto height h of the tower with an angle of elevation 2α. When from P, he moves a distance d in the direction of

→

, he can see the top B of the tower with an angle of elevation α. If d=√7h, then tan‌α is equal to

[27-Jul-2022-Shift-1]

√5−2
√3−1
√7−2
√7−√3

Validate

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