Answer:

Explanation:
<em>Given:</em>
Refractive index of prism μ = 1.5
Since the prism is equilateral,
Angle of prism A= 60°
<em>To find:</em>
Angel of incidence for which minimum deviation can occur(δm) ?
<em>Solution:</em>
We know that,
The refractive index, Angle of prism and angle of minimum deviation are correlated with formula,
<em>
</em>
Where symbols have their usual meaning.
Substituting the value from given data in formula,
<em>
</em>
<em>
</em>
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