a prism of a refracting angle 60° is made with a material of refractive index p.

a prism of a refracting angle 60° is made with a material of refractive index p. For a certain wavelength of light, the angle of minimum deviation is 30°. For this wavelength, the value of p of material is

(a) 1.820

(b) 1.414

(d) 1.231

a prism of a refracting angle 60° is made with a material of refractive index p.

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