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Ray Optics Test...

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  • Question 1
    4 / -1

    In the formation of primary rainbow, the sunlight rays emerge at minimum deviation from rain-drop after

  • Question 2
    4 / -1

    Dispersive power depends upon

  • Question 3
    4 / -1

    When white light passes through the achromatic combination of prisms, then what is observed

  • Question 4
    4 / -1

    The dispersion for a medium of wavelength λ is D, then the dispersion for the wavelength 2λ will be

  • Question 5
    4 / -1

    The refractive index of a prism for a monochromatic wave is √2 and its refracting angle is 60°. For minimum deviation, the angle of incidence will be

  • Question 6
    4 / -1

    The ratio of angle of minimum deviation of a prism in air and when dipped in water will be (aµg = 3 / 2 and aµw = 4/ 3)

  • Question 7
    4 / -1

    The respective angles of the flint and crown glass prisms are A\' and A. They are to be used for dispersion without deviation, then the ratio of their angles A\'/ A will be

  • Question 8
    4 / -1

    The no. of wavelengths in the visible spectrum

  • Question 9
    4 / -1

    The black lines in the solar spectrum during solar eclipse can be explained by

  • Question 10
    4 / -1

    The dispersive power is maximum for the material

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