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Magnification

An infinitely...

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An infinitely long rod lies along the axis of a concave mirror of focal length f, the near end of rod is at a distance u>f from mirror. What is length of image?

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Q. A thin rod of length

\frac{f}{3}

lies along the axis of a concave mirror of focal length f. One end of its magnified image touches an end of the rod. The length of the image is

Q. The near end of the rod which lies along the axis of a concave mirror of focal length f is at a distance

u > f

from the mirror. The length of the image is

\frac{f^{2}}{(u - f)}

. The far end of the rod will lie at :

Q. A rod of length

\frac{f}{2}

is placed along the axis of a concave mirror of focal length

^{'} f^{'} .

if the near end of the real image formed by the mirror just touches the far end of the rod, find its magnification.

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