Analogy: Signal is to Traffic as Lens is to ____. Identify what the second item regulates or controls, mirroring the first pair.
Correct Answer: Lens : Light
Introduction / Context:A traffic signal regulates traffic flow. We need an object paired with what it regulates in the same manner.
Given Data / Assumptions:
- Signal → controls traffic.
- Lens → focuses/controls what?
Concept / Approach:A lens refracts and focuses light, effectively controlling its path/convergence—a direct analogue to “signal controlling traffic.”
Step-by-Step Solution:Map “controller → controlled flow.”Pick “Lens : Light.”
Verification / Alternative check:Other options invert relations or pair unlike entities (e.g., dam : river is controller : controlled, but the format offered is “Dam : River,” not “Lens : Light” competitors).
Why Other Options Are Wrong:Door : house is containment/access relation; operation : doctor inverts agency.
Common Pitfalls:Overlooking that the second term must be the controlled medium.
Final Answer:Lens : Light.