If the ratio of volumes of two spheres is 1: 8, then the ratio of their surface areas is

Ratio of volume of spheres = (ratio of radius)^{3}

Given, ratio of volumes of two spheres is 1: 8

⇒ (ratio of radius)^{3} = 1 : 8

⇒ ratio of radius = 1 : 2

Ratio of surface area = (ratio of radius)^{2}

⇒ Ratio of surface area = 1 : 4

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