Answer
$-0.75$
Work Step by Step
We can use our answer from part A along with the given information to find the overall lateral magnification, $M$. First we consider equation 34-11
$M=m_1*m_2$
We note that $m=-i/p$. Using this equation, we find $M$ as:
$M=(-i_1/p_1)*(-i_2/p_2)$
$M=(-(-30cm)/10cm)*(-10cm/40cm)$
$M=-0.75$
