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Ray Optics Test...

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  • Question 1
    4 / -1

    The deviation caused in red, yellow and violet colours for crown glass prism are 2.84°, 3.28° and 3.72° respectively. The dispersive power of prism material is

  • Question 2
    4 / -1

    Dispersion of light is due to

  • Question 3
    4 / -1

    Pick the correct statement from the following.

  • Question 4
    4 / -1

    When white light enters a prism, it gets split into itsconstituent colours. This is due to

  • Question 5
    4 / -1

    The dispersive powers of crown and flint glasses are 0.02 and 0.04 respectively. In an achromatic combination of lenses the focal length of flint glass lens is 40 cm. The focal length of crown glass lens will be

  • Question 6
    4 / -1

    Consider the following two statements A and B and identify the correct choice in the given answers
    A : Line spectra is due to atoms in gaseous state
    B : Band spectra is due to molecules

  • Question 7
    4 / -1

    Under minimum deviation condition in a prism, if a ray is incident at an angle 30°, the angle between the emergent ray and the second refracting surface of theprism is

  • Question 8
    4 / -1

    A ray of light is incident normally on one of the face of a prism of angle 30° and refractive index√2. The angle ofdeviation will be

  • Question 9
    4 / -1

    The spectrum obtained from an electric lamp or redhot heater is

  • Question 10
    4 / -1

    Which one of the following alternative is FALSE for a prism placed in a position of minimum deviation

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