The following questions are from the “Microsoft Rewards Bing Turbocharge Quiz” for March 3, 2025. Let us know in the comments if you find any incorrect answers.
Discover surprising facts about light and its amazing properties in this illuminating quiz.
Question 1: What type of light is invisible to humans?
- Infrared
- Rainbow
- Candlelight
Correct Answer: Infrared
Fact: Humans can only see a small part of the light spectrum called visible light. Many types of light are invisible to us, such as infrared, which is used in night vision, and ultraviolet, which can cause sunburns. Other types include X-rays, which doctors use to see bones, and radio waves, which carry signals for TVs and phones. Even though we can’t see these types of light, they are all around us and play important roles in our daily lives.
Question 2: What phenomenon causes light to bend in water?
- Refraction
- Reflection
- Absorption
Correct Answer: Refraction
Fact: Light bends in water because it slows down when it enters from air into water. This happens due to a phenomenon called refraction, where light changes direction when it moves between materials of different densities. Water is denser than air, so light bends toward the normal (an imaginary line perpendicular to the surface) when it enters water. This bending effect is why objects under water appear shifted or distorted when viewed from above.
Question 3: What kind of light do blacklights emit?
- Fluorescent
- Infrared
- Ultraviolet
Correct Answer: Ultraviolet
Fact: Blacklights emit ultraviolet (UV) light, which is a type of light that is mostly invisible to the human eye. This UV light makes certain objects glow, like white clothes, fluorescent paints, and some insects. Blacklights are often used in party decorations, detecting counterfeit money, and forensic investigations. Even though they look like dim purple lights, most of their energy is in the UV range, which we can’t see directly.
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