JEE Main & Advanced
Mathematics
Trigonometric Identities
Question Bank
Numerical Value Type Questions - Trigonometric Functions
question_answer
An observer on the top of a tree, finds the angle of depression of a car moving towards the tree to be \[30{}^\circ \]. After 3 minutes this angle becomes \[60{}^\circ \]. Then, the time in minutes after which the car will reach the tree is