Answer:
Concave mirror,-20.48m
Explanation:
Concave mirrors-This is because the objects are made smaller by the mirror, so they appear farther away.
#we find the image distance from the magnification:
[tex]m=\frac{h_1}{h_o}=\frac{-d_i}{d_o}\\\\+0.33=\frac{-d_i}{20.8}\\\\d_i=-6.864m[/tex]
#We find the focal length from:
[tex]({\frac{1}{d_o})}+({\frac{1}{d_i})}=({\frac{1}{f})}\\\\({\frac{1}{20.8})}+({\frac{1}{-6.864})}=\frac{1}{f}\\\\f=-10.24m[/tex]
r=2f=-10.24m*2=-20.48m
#The mirror has a negative radius(-20.48m) of curvature since its vertex lies to the right of the center of curvature
