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An observer on the top of a tree ,finds ...

An observer on the top of a tree ,finds the angle of depression of a car moving towards the tree to be `30^@` .After 3 minutes this angle becomes `60 ^@`.After how much more time , the car will reach the tree ?

A

4 min.

B

4.5 min.

C

1.5 min.

D

2 min.

Text Solution

Verified by Experts

The correct Answer is:
C
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