Information and IdeasHardInference about street lighting
Information and Ideas practice question
When the town replaced its orange sodium street lamps with white LED lamps, residents said the streets felt brighter, yet the light meters showed the new lamps gave slightly less light. Researchers explained the contradiction by noting that white light lets the eye distinguish colours, which ____
Which choice most logically completes the text?
- A. makes a scene seem brighter even when the amount of light is unchanged or lower.Correct
- B. increases the amount of light the lamps produce.
- C. causes the light meters to read too low.
- D. makes the streets darker at night.
Answer: A. makes a scene seem brighter even when the amount of light is unchanged or lower.
Colour vision, not more light, explains the impression.
Why the other answers are wrong
- B. increases the amount of light the lamps produce.
- The meters showed less light.
- C. causes the light meters to read too low.
- The meters are not questioned.
- D. makes the streets darker at night.
- Residents said brighter.
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