The height of a rod is 3 feet, whereas the length of its shadow is √3 feet. What is the angle between the ground and Sun at that time?

60°

30°

45°

None of these

The angle θ can be found using tan(θ) = height / shadow length, i.e., tan(θ) = 3 / √3 = √3.

Since tan 60° = √3, the angle between the ground and the Sun is 60°.