Question

Match the depth cues in the first column with their description in the second column. 
Cues                                      Description
P. Aerial perspective             (i) The inward turning of the eyes that occurs when you look at an object that is closer to you. 
Q. Motion Parallax                (ii) The distant mountain appears fuzzy. 
R. Convergence                    (iii) Parallel lines appear to converge at the horizon. 
S. Linear perspective            (iv) When we travel in a vehicle, objects that are close appear to move in the opposite direction. 
 

• A. P-(ii), Q-(iv), R-(i), S-(iii)
• B. P-(ii), Q-(iii), R-(iv), S-(i)
• C. P-(iv), Q-(i), R-(ii), S-(iii)
• D. P-(iii), Q-(iv), R-(i), S-(ii)

Hint:

Depth perception relies on multiple visual cues—some depend on eye movement (convergence), while others depend on motion or atmospheric effects.

Answer 1

The Correct Option is A

Step 1: Identify Aerial Perspective (P).
Aerial perspective refers to the effect of the atmosphere on distant objects, making them appear hazy or fuzzy. This matches description (ii): “The distant mountain appears fuzzy.”
Step 2: Identify Motion Parallax (Q).
Motion parallax occurs when objects closer to the observer appear to move faster and in the opposite direction compared to distant objects when the observer is moving. This corresponds to description (iv).
Step 3: Identify Convergence (R).
Convergence is the inward turning of the eyes when focusing on nearby objects. This matches description (i).
Step 4: Identify Linear Perspective (S).
Linear perspective is the visual cue where parallel lines appear to meet at a point on the horizon. This corresponds to description (iii).
Step 5: Conclusion.
Thus, the correct matching is \[ \text{P-(ii), Q-(iv), R-(i), S-(iii)}. \]