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Wave Optics Tes...

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  • Question 1
    4 / -1

    A light beam is incident at θ on an interface of air glass such that angle between reflected and refracted beam is 900. Then θ is

  • Question 2
    4 / -1

    Out of the following statements which is not correct

  • Question 3
    4 / -1

    Polaroid glass is used in sun glasses because

  • Question 4
    4 / -1

    What changes on polarization of light ?

  • Question 5
    4 / -1

    When light is incident at polarizing angle, which is completely polarised ?

  • Question 6
    4 / -1

    A beam of unpolarised light passes through a tourmaline crystal A and then through another such crystal B oriented so that its principal plane is parallel to A. The intensity of emergent light is I0. Now B is rotated by 45o about the ray.The emergent light will have intensity

  • Question 7
    4 / -1

    The time period of rotation of the sun is 25 day s and its radius is 7 × 108 m. the Dopper shift for the light of wavelength 6000Å emitted from the surface of the sun will be

  • Question 8
    4 / -1

    The expression for apparent frequency of light when a source is moving towards earth is

  • Question 9
    4 / -1

    Which of the following is used in optical fibres?

  • Question 10
    4 / -1

    In Young’s double slit experiment, distance between tow sources is 0.1 mm. The distance of screen form the sources is 20 cm.Wavelength of light used is 5460 Å Then angular position of first dark fringe is A.

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