# ^Maximum deviation

^**Maximum deviation**

A prism shows maximum deviation when incidence angle is maximum i.e. 90^{0}, also then

- δ
_{max.}= 90^{0}+ e – A - r
_{1}= C - e = sin
^{–}^{1}[μ sin (A – C)]

^**Maximum deviation**

A prism shows maximum deviation when incidence angle is maximum i.e. 90^{0}, also then

- δ
_{max.}= 90^{0}+ e – A - r
_{1}= C - e = sin
^{–}^{1}[μ sin (A – C)]