Step 1:** Calculate the image distance using the mirror formula:
\[ \frac{1}{d_i} + \frac{1}{d_o} = \frac{1}{f} \]
Given \( d_o = 20 \, \text{cm} \), \( f = 10 \, \text{cm} \), we can solve for \( d_i \):
\[ \frac{1}{d_i} + \frac{1}{20} = \frac{1}{10} \]
\[
Show more…