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According to Cartesian sign convention, ...

According to Cartesian sign convention, which mirror and which lens has negative focal length?

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Concave mirror is having n negative focal length.
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Knowledge Check

  • Power of a lens is -4D, then its focal length is

    A
    4 m
    B
    `-40m`
    C
    `-0.25 m`
    D
    `-2.5m`

  • Power of a lens is -4D , then its focal length is :

    A
    4m
    B
    `-40m`
    C
    `-0.25m`
    D
    `-2.5m`

    • Similar Questions

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    What is the Cartesian sign convention used for spherical mirrors?

    What are the cartesian sign conventions for a spherical mirror ?

    What are the Cartesian sign coventions for a sperical mirror?

    A combination of two thin lenses in contact is to be made which has the same focal length for blue and red light. . (Such a combination is known as an ' achromatic doublet '). Show that the ratio of their focal lengths (for lengths (for yellow light ) must be equal in magnitude and opposite in sign to the ratio of the dispersive powers of the material of the two lenses. b. Use the results in (a) to suggest a way of removing chromatic aberration of the convex lens of focal length 15 cm , made of flint glass. You are given convex and concave lenses (made of crown glass ) of various focal lengths. The ratio of the dispersive powers of flint glass to crown glass is about 1.5

    The teacher shows a thin lens and a thick lens. a. Which of these lens forms more enlarged image ? b. Which lens has greater focal length?

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