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Light-Part 2-Grade5

  • Game Code: 96125
  •  English    20     Public
    properties of light, Light travels in straight line,types of reflection,dispersion of light,rainbows formation,shadow formation ,revolution and rotation.
  •   Study   Slideshow
  • What is white light?
    It is the combination of 7 colours in the spectrum
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  • Is Light a Wave?
    Yes, It is an electromagnetic wave
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  • Does light always travel in straight line?
    Yes,light always travels in straight line till it is blocked by an object.
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  • What is the speed of light?
    300000km/sec
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  • Can light travel in vacuum?
    yes,Light can travel through Vacuum
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  • How do we see an object?
    When the reflected ray from that object reaches our eyes, we see
  •  15
  • Light rays are reflected from rough surface.What is this type of reflection called?
    Irregular reflection
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  • Light rays are reflected from a smooth surface.What is this type of reflection called?
    Regular Reflection.
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  • What is the band of seven colours of light called?
    Spectrum
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  • what is the phenomena of breaking of light into 7 colours called?
    Dispersion
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  • When a water droplet breaks light into the 7 colours what do we see?
    A rainbow
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  • 3 things required to form a shadow?
    Source of Light opaque object Screen
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  • Define Incident Ray?
    The ray that comes from an object and strikes the mirror.
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  • Define Reflected ray?
    The ray that reflects or bounces off the mirror.
  •  15
  • Translucent bodies do not cast shadows? True or False
    False
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  • A collection of rays are called.......................
    Beam of Light
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