What Makes Things Visible

  1. Q1: What physical form of energy helps us to see objects?
    Answer: Light
    Explanation: Light is the form of energy that enables us to see objects when it reflects from them into our eyes.
  2. Q2: What do objects reflect to become visible?
    Answer: Light
    Explanation: Objects reflect light falling on them, which then reaches our eyes and makes them visible.
  3. Q3: What part of the body helps us to see objects?
    Answer: Eyes
    Explanation: Our eyes receive light reflected from objects and help us to see them.
  4. Q4: What is the condition of the surroundings in the absence of light?
    Answer: Dark
    Explanation: In the absence of light, there is darkness and objects are not visible.
  5. Q5: What do we call objects that emit their own light?
    Answer: Luminous
    Explanation: Luminous objects are those which produce their own light, like the sun and electric bulb.
  6. Q6: What type of objects can be seen only when light falls on them?
    Answer: Nonluminous
    Explanation: Non-luminous objects do not produce their own light and become visible only when they reflect light.
  7. Q7: What term is used for light bouncing off the surface of an object?
    Answer: Reflection
    Explanation: Reflection is the process by which light bounces off the surface of an object, making it visible.
  8. Q8: What must fall on an object to make it visible?
    Answer: Light
    Explanation: Light must fall on an object and get reflected to make it visible to the human eye.
  9. Q9: What natural source provides light during the day?
    Answer: Sun
    Explanation: The sun is the primary natural source of light that makes things visible during the daytime.
  10. Q10: What happens to visibility when light is blocked?
    Answer: Darkness
    Explanation: When light is blocked, darkness occurs and visibility is lost.

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