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Light Test - 4...

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  • Question 1
    1 / -0

    If the velocity of light in vacuum is 3 × 108 m/s, the velocity of light in diamond (refractive index of diamond is 2.417) is

  • Question 2
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    If a ray of light is incident on a plane mirror at an angle of 20o with the mirror, what will be the angle of reflection?

  • Question 3
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    What is the focal length of a plane mirror?

  • Question 4
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    If the magnification has a negative sign, the image is ________ and ________.

  • Question 5
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    When an object is placed between two parallel mirrors, the number of images formed will be

  • Question 6
    1 / -0

    In old age, people generally have to wear spectacles for reading and writing because

  • Question 7
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    Which of the following options is the main difference between an eye and a camera?

  • Question 8
    1 / -0

    A dark muscular assembly which controls the size of the opening that regulates the amount of light entering the eye is called

  • Question 9
    1 / -0

    The screen of eye is called

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