question_answer

A man from the top of a 100 metres high tower sees a car moving towards the tower at an angle of depression of\[30{}^\circ \]. After some time, the angle of depression becomes\[60{}^\circ \]. The distance (in metres) travelled by the car during this time is:

A)  \[100\sqrt{3}\]              

B)  \[\frac{200\sqrt{3}}{3}\]

C)  \[\frac{100\sqrt{3}}{3}\]                       

D)  200

E)  None of these