Question

In your laboratory you trace the path of light rays through a glass slab for different values of angle of incidence $\left(\angle i\right)$ and in each case measure the values of the corresponding angle of refraction $\left(\angle r\right)$ and angle of emergence $\left(\angle e\right)$.

On the basis of your observations your correct conclusion is :

(a) $\angle i$ is more than $\angle r$, but nearly equal to $\angle e$

(b) $\angle i$ is less than $\angle r$, but nearly equal to $\angle e$

(c) $\angle i$ is more than $\angle e$, but nearly equal to $\angle r$

(d) $\angle i$ is less than $\angle e$, but nearly equal to $\angle r$

Answer 1

(a) $\angle i$ is more than $\angle r$, but nearly equal to $\angle e$