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The plane surface of a planoconvex lens ...

The plane surface of a planoconvex lens is silvered. If radius of curved surface is R and refractive index is `mu`, then the system behaves like a concave mirror whose radius will be

A

`(R)/(mu)`

B

`Rmu`

C

`(R)/(mu - 1)`

D

`R (mu - 1)`

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  • If the plane surface of a plano-convex lens of radius of curvature R and refractive index mu is silvered, then its focal length would be

    A
    `f = R/ 2(mu +1)`
    B
    `f = 2/ R(mu +1)`
    C
    `f = 2R/ (mu +1)`
    D
    `f = R/ 2(mu -1)`

  • The plane face of a planoconvex lens is silvered. If mu be the refractive index and R, the radius of curvature of curved surface, then the system will behave like a concave mirror of radius of curvature

    A
    `muR`
    B
    `(R)/((mu-1))`
    C
    `(R^(2))/(mu)`
    D
    `[(mu+1)/((mu-1))]R`

  • The plane face of a plano-convex lens is silvered. If mu be the refractive index and R be the radius of curvature of curved surface, then system will behave like a concave mirror of radius of curvature

    A
    `muR`
    B
    `R^2//mu`
    C
    `R//(mu-1)`
    D
    `[(mu+1)//(mu-1)]R`

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