1

JEE Main 2018 (Online) 16th April Morning Slot

MCQ (Single Correct Answer)

+4

-1

A man on the top of a vertical tower observes a car moving at a uniform speed towards the tower on a horizontal road. If it takes 18 min. for the angle of depression of the car to change from 30

^{o}to 45^{o}; then after this, the time taken (in min.) by the car to reach the foot of the tower, is :2

JEE Main 2018 (Offline)

MCQ (Single Correct Answer)

+4

-1

PQR is a triangular park with PQ = PR = 200 m. A T.V. tower stands at the mid-point of QR. If the angles
of elevation of the top of the tower at P, Q and R are respectively 45$$^\circ $$, 30$$^\circ $$ and 30$$^\circ $$, then the height of the tower (in m) is :

3

JEE Main 2018 (Online) 15th April Evening Slot

MCQ (Single Correct Answer)

+4

-1

A tower T

_{1}of height 60 m is located exactly opposite to a tower T_{2}of height 80 m on a straight road. Fromthe top of T_{1}, if the angle of depression of the foot of T_{2}is twice the angle of elevation of the top of T_{2}, then the width (in m) of the road between the feetof the towers T_{1}and T_{2}is :4

JEE Main 2018 (Online) 15th April Morning Slot

MCQ (Single Correct Answer)

+4

-1

An aeroplane flying at a constant speed, parallel to the horizontal ground, $$\sqrt 3 $$ kmabove it, is obsered at an elevation of $${60^o}$$ from a point on the ground. If, after five seconds, its elevation from the same point, is $${30^o}$$, then the speed (in km / hr) of the aeroplane, is :

Questions Asked from Height and Distance (MCQ (Single Correct Answer))

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