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Ray Optics Test...

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  • Question 1
    4 / -1

    A prism of refraction angle 60º has minimum angle of deviation of 30º. What must be the angle of incidence for this case?

  • Question 2
    4 / -1

    Yellow light is refracted through a prism producing minimum deviation. If i1 and i2 denote the angle of incidence and emergence for this prism, then

  • Question 3
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    When white light passes through a dispersive medium, it breaks up into various colours. Which of the following statements is true?

  • Question 4
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    Emission of light stops as the incident light is cut off in

  • Question 5
    4 / -1

    Indicate the correct statement in the following

  • Question 6
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    The refracting angle of a prism is A and the refractive index is cot (A/2). What is angle of minimum deviation?

  • Question 7
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    Two lenses of focal lengths + 10 cm and – 15 cm when put in contact behave like convexlens. They will have zero longitudinal chromatic aberration, if ratio of dispersive powers is

  • Question 8
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    A person wants to see two pillars distant 11 km separately. The distance between the pillars be approximately

  • Question 9
    4 / -1

    Magnifying power of an astronomical telescope for normal vision with usual notation is

  • Question 10
    4 / -1

    A film projector magnifies a 100 sq cm film strip on a screen. If the linear magnification is 4, the area of magnified film on the screen is

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