if the angle of incidence is 30°, what is the value of the angle of reflection?

if the angle of incidence is 30°, what is the value of the angle of reflection?
Answer
Explanation:
Step1: Recall law of reflection
According to the law of reflection, the angle of incidence ($\theta_i$) is equal to the angle of reflection ($\theta_r$), i.e., $\theta_i=\theta_r$.
Step2: Substitute given value
Given $\theta_i = 30^{\circ}$, so $\theta_r=30^{\circ}$.
Answer:
$30$