* A 2.0 cm long pin is placed perpendicular to the principal axis of a convex lens of focal length 12cm the distance of the pin from the lens is 15cm . Find the size of the image.

* A 2.0 cm long pin is placed perpendicular to the principal axis of a

1.	* A 2.0 cm long pin is placed perpendicular to the principal axis of a convex lens of focal length 12cm the distance of the pin from the lens is 15cm . Find the size of the image.
Answer» = -15cm, f= 12cm, H1= 2cm, V=?.h2=?Using lens formula,1/f = 1/v - 1/u=> 1/v = 1/f + 1/u=> 1/v = 1/12 + 1/(-15)=> 1/v = 1/60=> v = 60CM which indicates that the image FORMED is real and inverted.Now magnification = v/u = h2/h1Hence, 60/(-15) =h2/2=> h2 = 8cm-ve sign indicates inverted image. Hence, the size of the image is 8cm.

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* A 2.0 cm long pin is placed perpendicular to the principal axis of a convex lens of focal length 12cm the distance of the pin from the lens is 15cm . Find the size of the image.​

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* A 2.0 cm long pin is placed perpendicular to the principal axis of a convex lens of focal length 12cm the distance of the pin from the lens is 15cm . Find the size of the image.