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Pushpa Shah
Asked: 2022-11-08T18:53:14+05:30 In:

A convex mirror of focal length f produced an image `(1//n)^(th)` of the size of the object. The distance of the object from the mirror is
A. `(n-1)f`
B. `((n-1)/n)f`
C. `((n+1)/n)f`
D. `(n+1)f`

A convex mirror of focal length f produced an image `(1//n)^(th)` of the size of the object. The distance of the object from the mirror is
A. `(n-1)f`
B. `((n-1)/n)f`
C. `((n+1)/n)f`
D. `(n+1)f`
Parabola
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  1. Correct Answer – a

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Jawahar Menon
Asked: 2022-11-06T23:59:39+05:30 In:

A convex mirror of focal length f produced an image `(1//n)^(th)` of the size of the object. The distance of the object from the mirror is
A. `(n-1)f`
B. `[(n-1)/(n)]f`
C. `[(n+1)/(n)]f`
D. `(n+1)f`

A convex mirror of focal length f produced an image `(1//n)^(th)` of the size of the object. The distance of the object from the mirror is
A. `(n-1)f`
B. `[(n-1)/(n)]f`
C. `[(n+1)/(n)]f`
D. `(n+1)f`
Parabola
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Leave an answer

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1 Answer

  1. Correct Answer – A
    (a) Magnification, ` m=+1/n=-u/vs`
    `therefore` `v=-u/n`
    From the mirror formula,
    `1/f=(1)/((-(u)/(n)))+1/u`
    The distance of the object of the mirror, u=-(n-1)f

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