jee-main 2022 Q68

jee-main · India · session2_25jul_shift1 Sine and Cosine Rules Heights and distances / angle of elevation problem

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 $QR = 15$ m. If from a point $A$ on the ground the angle of elevation of $R$ is $60 ^ { \circ }$ and the part $PR$ of the tower subtends an angle of $15 ^ { \circ }$ at $A$, then the height of the tower is
(1) $5(2\sqrt { 3 } + 3)$ m
(2) $5(\sqrt { 3 } + 3)$ m
(3) $10(\sqrt { 3 } + 1)$ m
(4) $10(2\sqrt { 3 } + 1)$ m

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 $QR = 15$ m. If from a point $A$ on the ground the angle of elevation of $R$ is $60 ^ { \circ }$ and the part $PR$ of the tower subtends an angle of $15 ^ { \circ }$ at $A$, then the height of the tower is\\
(1) $5(2\sqrt { 3 } + 3)$ m\\
(2) $5(\sqrt { 3 } + 3)$ m\\
(3) $10(\sqrt { 3 } + 1)$ m\\
(4) $10(2\sqrt { 3 } + 1)$ m

Paper Questions

Q61 Q62 Q63 Q64 Q65 Q66 Q67 Q68 Q69 Q70 Q71 Q72 Q73 Q74 Q75 Q76 Q77 Q78 Q79 Q80 Q81 Q82 Q83 Q84 Q85 Q86 Q87 Q88 Q89 Q90