# Problem: A biologist keeps a specimen of his favorite beetle embedded in a cube of polystyrene plastic. The hapless bug appears to be 2.0 cm within the plastic. What is the beetle's actual distance beneath the surface? Express your answer using two significant figures.

###### FREE Expert Solution

The actual and the apparent depth of the beetle is expressed as:

$\overline{){\mathbit{\eta }}{\mathbf{=}}\frac{{\mathbf{d}}_{\mathbf{a}\mathbf{c}\mathbf{t}\mathbf{u}\mathbf{a}\mathbf{l}}}{{\mathbf{d}}_{\mathbf{a}\mathbf{p}\mathbf{p}\mathbf{a}\mathbf{r}\mathbf{e}\mathbf{n}\mathbf{t}}}}$

Therefore, dactual = ηdapparent

95% (208 ratings) ###### Problem Details

A biologist keeps a specimen of his favorite beetle embedded in a cube of polystyrene plastic. The hapless bug appears to be 2.0 cm within the plastic.

What is the beetle's actual distance beneath the surface? Express your answer using two significant figures.

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