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Draw course of rays through a compound microscope. Deduce an expression for its magnifying power. How can the magnifying power be increased ?

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Draw a labelled diagram of compound microscope. Derive expression for its magnifying power.

Draw the ray diagram for simple microscope. Write expression for its magnifying power.

Knowledge Check

  • Magnifying power of a telescope is

    A
    `1//f_0 f_e`
    B
    `f_0//f_e`
    C
    `f_e//f_0`
    D
    `f_0f_e`

  • The magnifying power of a compound microscope can be increased by

    A
    using both lenses of longer focal length
    B
    taking objective lens of shorter focal length
    C
    using both lenses of smaller focal length
    D
    taking objective lens of longer focal length and eye-lens of shorter focal length

    • Similar Questions

    Explore conceptually related problems

    (a) Draw a ray diagram for final image formed at distance of distinct vision (D) by a compound microscope and write expression for its magnifying power. (b)An angular magnification (magnifying power) of 30x is desired for a compound microscope using as objective of focal length 1.25cm and eye piece of focal length 5cm. How will you set up the compound microscope?

    (a) Draw a ray diagram for final image formed at distance of distinct vision (D) by a comppound microscope and write expression for its magnifying power. (b) An angular magnification (magnifying power) of 30x is desired for a compound microscope using as objective of focal length 1.25 cm and eye piece of focal length 5 cm. How will you set up the compound microscope?

    (a) Draw a ray diagram to show the working of a compound microscope. Deduce an expression for the total magnification when the final image is formed at the near point. (b) In a compound microscope, an object is placed at a distance of 1.5 cm from the objective of focal length 1.25 cm. If the eyepiece has a focal length of 5 cm and the final image is formed at the near point, estimate the magnifying power of the microscope

    Draw a ray diagram to show the working of a compound microscope. Deduce an expression for the total magnification the final image is formed at the near point. In a compound microscope , an object is placed at a distance of 1.5 cm from the objective of focal length 1.25cm. if the eye piece has a focal length of 5 cm and the final image is formed at the near point, estimate the magnifying the power of the microscope.

    Draw labelled ray diagram to show image formation in a compound microscope. Write the expression for its magnifying power.

    The compound microscope is of magnifying power is 100.The magnifying power of its eyepiece " is 4.Then magnifying power of objective is

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