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Ray Optics Test - 147
Result
Ray Optics Test - 147

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  • Question 1/10
    4 / -1
    An electron microscope is superior to an optical microscope in
    Solutions

  • Question 2/10
    4 / -1
    The magnifying power of a microscope with an objective of 5 mm focal length is 400. The length of its tube is 20 cm. Then the focal length of the eye-piece is
    Solutions

  • Question 3/10
    4 / -1
    When the object is self-luminous, the resolving power of a microscope is given by the expression
  • Question 4/10
    4 / -1
    The power of two convex lenses A and B are 8 dioptres and 4 dioptres respectively. If they are to be used as a simple microscope, the magnification of
    Solutions

  • Question 5/10
    4 / -1
    A person using a lens as a simple microscope sees an
  • Question 6/10
    4 / -1
    Resolving power of a microscope depends upon
    Solutions

  • Question 7/10
    4 / -1
    In a compound microscope, the focal lengths of two lenses are 1.5 cm and 6.25 cm. An object is placed at 2 cm form objective and the final image is formed at 25 cm from eye lens. The distance between the two lenses is
    Solutions

  • Question 8/10
    4 / -1
    A wire mesh consisting of very small squares is viewed at a distance of 8 cm through a magnifying converging lens of focal length 10 cm, kept close to the eye. The magnification produced by the lens is
    Solutions

  • Question 9/10
    4 / -1
    The magnifying power of a simple microscope is 6. The focal length of its lens in metres will be, if least distance of distinct vision is 25 cm
    Solutions

  • Question 10/10
    4 / -1
    A compound microscope has two lenses. The magnifying power of one is 5 and the combined magnifying power is 100. The magnifying power of the other lens is
    Solutions

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