3.1. Light and its Spread
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Questions and Answers

What happens when light falls on a transparent object?

  • The light passes through the object. (correct)
  • The light is reflected by the object.
  • The light is absorbed by the object.
  • The light is refracted by the object.

    • What happens when light falls on an opaque object?

  • The light is reflected by the object.
  • The light is refracted by the object.
  • The light is absorbed by the object. (correct)
  • The light passes through the object.

    • What happens when light falls on a mirror?

  • The light is absorbed by the mirror.
  • The light is transmitted through the mirror.
  • The light is reflected by the mirror. (correct)
  • The light is diffracted by the mirror.

    • What happens when light falls on a glass object?

    <p>The light is both transmitted and reflected by the glass. (A)</p> Signup and view all the answers

    How does light travel?

    <p>In a straight line. (A)</p> Signup and view all the answers

    Which of the following is an example of a non-luminous body?

    <p>A computer screen (A)</p> Signup and view all the answers

    What is the primary source of light for the moon?

    <p>The Sun (B)</p> Signup and view all the answers

    Which statement best describes how we see a non-luminous body like an armchair?

    <p>Light from a source reflects off the armchair and enters our eyes. (A)</p> Signup and view all the answers

    What is the essential characteristic that allows light to travel through empty space?

    <p>Light travels as a wave, not requiring a medium to propagate. (B)</p> Signup and view all the answers

    How does light travel from the sun to the Earth?

    <p>Light travels in straight lines, even though the sun and Earth are in motion. (A)</p> Signup and view all the answers

    Study Notes

    Light and its Spread

    • Light is critical in observing things and creating shadows
    • Light is a form of energy transfer
    • Light sources are classified as illuminating or non-illuminating
    • Illuminating bodies produce light
    • Non-illuminating bodies reflect light
    • Light travels in a straight line
    • Light from a lamp spreads in a straight line
    • We see non-light-producing objects because they reflect light onto our eyes

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    Description

    This quiz explores the fundamental concepts of light, its characteristics, and its behavior as it spreads. Participants will learn about the different sources of light, the distinction between illuminating and non-illuminating bodies, and how light travels. Dive into the fascinating world of light and its vital role in our perception of the environment.

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