Physics

Problem

Which of the following expressions gives the linear magnification

M

produced by a thin lens in terms of the image distance

s_i

and object distance

s_o

when standard sign conventions are used? a)

M=\dfrac{s_i}{s_o}

M=-\dfrac{s_i}{s_o}

M=\dfrac{s_o}{s_i}

M=-\dfrac{1}{s_o s_i}