A concave mirror has a radius of curvature of 34.0cm .
a) A ladybug 7.50mm tall is located 22.0cm from this mirror along the principal axis. Find the location of the image of the insect. (answer in cm)
b) Find the height of the image of the insect.(answer in mm)
c) the mirror is immersed in water (of refractive index 1.33), what is its focal length? (answer in cm)