An object 2cm tall is kept on the principal axis of a converging lens of focal length 8 cm. Find the position, nature and size of the image formed if the object is at 12cm from the lens. Also find the magnification produced by the lens.

An object 2cm tall is kept on the principal axis of a converging lens

1.	An object 2cm tall is kept on the principal axis of a converging lens of focal length 8 cm. Find the position, nature and size of the image formed if the object is at 12cm from the lens. Also find the magnification produced by the lens.
Answer» Solution :Given: `h_0 = 2CM , f = 8cm ,u= -12cm , v ? ` ` 1/f = 1/v - 1/u` `1/v = 1/f + 1/u` `1/v = 1/8 - 1/12` `1/v = (3-2)/(24) = 1/24` REAL and INVERTED Real and inverted `(h_i)/(h_0) = v/u` ` (h_i)/((2) = (24)/(-12)` ` h_i= - 48/12 = -4` `h_o = - 4` MAGNIFICATION ` = v/u = (24)/(-12) = -2 `