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Ray Optics and ...

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  • Question 1
    1 / -0.25

    Light rays from a point object

  • Question 2
    1 / -0.25

    The graph drawn with object distance along abscissa &image as ordinate for a convex lens is

  • Question 3
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    A lens of power + 2.0 D is placed in contact with another lens of power –1.0 D. The combination will behave like

  • Question 4
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    A short pulse of white light is incident from air to a glass slab at  normal incidence. After travelling through the slab, the first colour  to emerge is

  • Question 5
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    According to Cartesian sign convention.

  • Question 6
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    At the minimum deviation  Dm, the refracted ray inside the prism

  • Question 7
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    An observer looks at a tree of height 15 metre with a telescope of magnifying power 10. To him, the tree appears

  • Question 8
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    Magnifying power of a compound microscope is high if

  • Question 9
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    According to Cartesian sign convention the heights measured

  • Question 10
    1 / -0.25

    The bluish color predominates in a clear sky,

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