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OpenStudy (anonymous):

Q. the focal length (f=10 cm). At what distance object should be placed to get an image twice size of object?

OpenStudy (anonymous):

@ganeshie8

OpenStudy (anonymous):

first II show you my work :)

ganeshie8 (ganeshie8):

not gud wid optics sorry :(

ganeshie8 (ganeshie8):

im no use..

OpenStudy (anonymous):

ok ty for reply :)

OpenStudy (anonymous):

@thomaster @oksuz_ Can you help me please ???

OpenStudy (anonymous):

\[1/f = 1/p + 1/q ; q=2p \]

OpenStudy (anonymous):

|dw:1381605045392:dw|

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