Question

4 multiple choice 2 points a ray of light strikes a mirror at an angle of incidence of 60°. what is the angle of reflection? 0° 30° 60° 90° 5 multiple choice 2 points when a light ray is reflected from a surface, the ratio of the angle of incidence to the angle of reflection is less than one greater than one equal to one

Explanation:

Step1: Recall the law of reflection

The law of reflection states that the angle of incidence ($\theta_i$) is equal to the angle of reflection ($\theta_r$), i.e., $\theta_i=\theta_r$.

Step2: Solve for the angle of reflection in question 4

Given $\theta_i = 60^{\circ}$, by the law of reflection $\theta_r=\theta_i = 60^{\circ}$.

Step3: Solve for the ratio in question 5

Since $\theta_i=\theta_r$, the ratio $\frac{\theta_i}{\theta_r}=\frac{\theta_i}{\theta_i}=1$ (when $\theta_i
eq0^{\circ}$; and even when $\theta_i = 0^{\circ}$, the ratio is still well - defined as $1$ in the limit sense).

Answer:

1. $60^{\circ}$
2. equal to one