Physics

Problem

A laboratory technician observes that a pressure sensor reads a gauge pressure of

80\,\text{kPa}

when submerged in oil of density

800\,\text{kg/m}^3

. If the same sensor were submerged in freshwater (

1000\,\text{kg/m}^3

) until it again read

80\,\text{kPa}

gauge pressure, what would be the ratio

h_{\text{oil}}/h_{\text{water}}

of the required depths? a)

0.80

1.56

1.25

1.00