Question

3. A ray of light is reflected by three mirrors. What should be
$\alpha \: if \: \beta \ = 35 }^{0}$
​

Answer 1

Answer:

35 degrees

Step-by-step explanation:

The law of reflection states that the angle of reflection equals the angle of incidence, or  

${\theta }_{\text{r}}={\theta }_{\text{i}}$

So, if ${\theta }_{\text{r}}=35$

So, Angle of incidence will also be equal to 35 degrees.