What is meant by red light area?

More Questions

• Why are danger signal lights red in colour?
• How to check red light camera ticket online?
• How to activate red light filter on iphone?
• How to find red light camera locations?
• Why red light is used for danger signal?
• Why red light blinking in car after locking?
• Why red light is used in traffic signal?
• What are the light colored areas on the moon called?
• What is meant by rain shadow area?
• What is meant by refraction of light?