In the following ray diagram the correctly marked angle are :

(a) $\angle i$ and $\angle e$

(b) $\angle A$ and $\angle D$

(c) $\angle i,\angle e$ and $\angle D$

(d) $\angle r,\angle A$ and $\angle D$

Q.

After tracing the path of a ray of light through a glass prism a student marked the angle of incidence ($\angle$i), angle of refraction ($\angle$ r) angle of emergence ($\angle$e) and the angle of deviation ($\angle$D) as shown in the diagram. The correctly marked angles are:

Q.

A student traces the path of a ray of white light through a rectangular glass slab and marks, the angles of incidence $\left(\angle i\right)$refraction $\left(\angle r\right)$ and emergence $\left(\angle e\right)$as shown. Which angle or angles has he not marked correctly?

Q. A student traces the path of a ray of light passing through a rectangular glass slab and marks the angle of incidence i, angle of refraction r and angle of emergence e, as shown. The correctly marked angle(s) is /are:

Q. In the adjacent diagram, AO is a ray of light incident on a rectangular glass slab.

(a) Complete the path of the ray till it emerges out of the slab.
(b) In the diagram, mark the angle of incidence (i) and the angle of refraction (r) at the first interface. How is the refractive index of glass related to the angles i and r ?
(c) Mark angle of emergence by the letter e. How are the angles i and e related ?
(d) Which two rays are parallel to each other ?
(e) Indicate in the diagram the lateral displacement between the emergent ray and the incident ray. State one factor that affects the lateral displacement.

Q.

In the diagram below, PQ is a ray of light incident on a rectangular glass block.

In the diagram, the angle of incidence is marked by letter 'i' and the angle of emergence by the letter 'e’.

How are the angles' i’ and 'e’ related to each other?