Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).

A ladder makes an angle of $60^\circ$ with the ground when placed against a wall. If the foot of the ladder is $2$ m away from the wall, then the length of the ladder (in meters) is:

1. A.$2$ m
2. B.$4$ mCorrect answer
3. C.$2\sqrt{3}$ m
4. D.$4\sqrt{3}$ m