Object vs Image

Q. The incident ray, reflected ray and the outward drawn normal are denoted by the unit vectors, $\overrightarrow{a},\overrightarrow{b}$ and $\overrightarrow{c}$ respectively. Then, choose the correct relation for these vectors.

1. $\overrightarrow{b}=\overrightarrow{2a}+\overrightarrow{c}$
2. $\overrightarrow{b}=\overrightarrow{a}-\overrightarrow{c}$
3. $\overrightarrow{b}=\overrightarrow{a}+2\overrightarrow{c}$
4. $\overrightarrow{b}=\overrightarrow{a}-2(\overrightarrow{a}.\overrightarrow{c})\overrightarrow{c}$

Q. In the diagram below, three diverging rays hit the eye. What are you seeing?

1. an object
2. an image
3. insufficient information
4. no Glasses? I can't see anything.

Q.

Light falls on 'A', gets reflected, and goes to an optical instrument, that somehow converges the rays to meet at 'B', such that 'B' appears to be giving off rays. 'A' is the ______ and 'B' is the _______ .

1. image, object.
2. object, image.
3. light source, object
4. light source, image.

Q. is the point where the light rays gets reflected, and is the place where the reflected rays appear diverge.

1. image
2. object
3. shadow
4. mirage

Q. In the diagram below, three diverging rays hit the eye. What are you seeing?

1. an object
2. an image
3. insufficient information
4. no Glasses? I can't see anything.