Question

The ratio of the length of a rod and its shadow is $1:\sqrt{3}$. The angle of elevation to the top of the rod from the ground is:

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

In right triangle ABC,

$tanA=\frac{BC}{AB}=\frac{1}{\sqrt{3}}$
$\Rightarrow \angle A={30}^{\circ }$