Science

10th

grade

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Light - reflection and refraction

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10 questions

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  • 1. Fill in the Blank
    45 seconds
    1 pt

    When a ray of light entering from air is incident on the surface of a glass slab at an angle of 90°, the measure of angle of refraction=

  • 2. Fill in the Blank
    45 seconds
    1 pt

    The focal length of a plane mirror is ____________

  • 3. Fill in the Blank
    45 seconds
    1 pt

    As per laws of reflection of light angle of incidence is always equal to angle of ___________.

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