For a composite rod like shown above in Discussion Question 6, each section has length 0.75 m and a cross-sectional area 4 cm². Suppose that the thermal conductivities of wood and metal are kw = 1 and km = 14, in MKS units. a) Find the temperature at the midpoint of the composite rod. b) Find the rate of heat flow across the composite rod. *

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Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.