A tower PQ stands on a horizontal ground with base … on the ground. The point … divides the tower in two parts such that …. If from a point … on the ground the angle of elevation of … is … and the part … of the tower subtends an angle of … at …, then the height of the tower is :

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Height and Distance

JEE Main 2022 · 25 Jul, Morning shift · Q3930

MathematicsMedium38×since 2004Q3930

A tower PQ stands on a horizontal ground with base

Q

on the ground. The point

R

divides the tower in two parts such that

Q R=15 \mathrm{~m}

. If from a point

A

on the ground the angle of elevation of

R

60^{\circ}

and the part

P R

of the tower subtends an angle of

15^{\circ}

A

, then the height of the tower is :