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Pls it's urgent ... Use the lens equation deduce algebraically that an object placed within the focus of a convex lens produces a virtual and enlarged image |
| Answer» ET the lens formula 1/ v = 1/f + 1/ unow let's get them in a standard form1/v - 1/ u = 1/f u - v / u x v. ....Equating the denominator(u - v ) f = u x v Hence if the object is placed within the focus of a CONVEX lens It will be always negative As image distance is Subtracted by object distance hence we get a negative numberAnd if that negative number is multiplied by f ....GIVENIT will produce a Negative image means an image that is in front of the lens that means a VIRTUAL and erected one .... | |