Question

Focal length of a convex lens is 50cm. if the object is kept at a distance of 75cm from the lens, then find the image distance and magnification produced by the lens ​

Answer 1

Answer:

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Explanation:

Given in question that

Focal length ofconvex lens is 50 centimetre . and we are given that image of object from lens is 75 centimetre . now we know that lens formula is given by 1/f = 1/v-1/u now since the image formed on the other side of convex lens will be greater and magnified therefore we have to find the size of image, ie, 1/v so we get,

1/f+1/u=1/v and we are given f equal to 50 centimetre and you equal to 75 centimetre.

on solving we get the value of V and this is the the distance of image from convex lens. now apply the formula of magnification of image.

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