A Small Object Is Encased in an Acrylic Block $(n=1.5)$ the Object Appears to Be

Multiple Choice

A small object is encased in an acrylic block $(n=1.5)$ . The object appears to be $4.0 \mathrm{~cm}$ below the surface. What is the actual distance of the object below the surface?

A) $6.0 \mathrm{~cm}$
B) $2.0 \mathrm{~cm}$
C) $5.5 \mathrm{~cm}$
D) $2.7 \mathrm{~cm}$
E) $4.0 \mathrm{~cm}$