A prism of angle A=1° has a refractive


A prism of angle $\mathrm{A}=1^{\circ}$ has a refractive index $\mu=1.5$. A good estimate for the minimum angle of deviation (in degrees) is close to N/ 10. Value of $\mathrm{N}$ is___________.


$\delta_{\min }=(\mu-1) \mathrm{A}$

$=(1.5-1) 1$


$\delta_{\min }=\frac{5}{10}$


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