Question

Arrange the following steps in sequential order to verify the laws of reflection of light.

• A. B A E C D F G
• B. B L A C F E G
• C. B A D C E F G
• D. B D C E F A G

Answer 1

The correct option is C

B A D C E F G

The sequential order for verification of the laws of reflection of light is B A D C E F G.

The ordered sequence is as follows,

1. Fix a white paper to a drawing board and draw a straight line $MM\text{'}$ and a line $ON$ perpendicular to $MM\text{'}$ on the paper.
2. Place a mirror on $MM\text{'}$ and looking at the pins $P$ and $Q$ from the other side of the normal observe their images.
3. Draw a line $PO$ such that it makes suitable acute angle with the normal and fix two pins $P$ and $Q$ on the line, which is the incident ray.
4. Fix two more pins $P\text{'}$ and $Q\text{'}$ in line with the images of the pins $P$ and $Q$.
5. Measure $\angle PON$, the angle of incidence and $\angle P\text{'}ON$ ,the angle of reflection.
6. Remove the plane mirror and join $P\text{'}$ and $O$. $OP\text{'}$ the reflected ray.
7. Repeat the experiment for different angles of incidence and tabulate the results.

Hence, the correct option is (c).