The ratio of the total surface area of a sphere and a hemisphere of same radius is

(a) 2 : 1

(b) 3 : 2

(c) 4 : 1

(d) 4 : 3

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Solution

In the given question,

The total surface area of a sphere (S₁) =

The total surface area of a hemisphere (S₂) =

So the ratio of the total surface area of a sphere and a hemisphere will be,

Therefore, the ratio of the surface areas is. So, the correct option is (d)

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The ratio of the total surface area of a sphere and a hemisphere of same radius is (a) 2 : 1 (b) 3 : 2 (c) 4 : 1 (d) 4 : 3

In the given question, The total surface area of a sphere (S1) = The total surface area of a hemisphere (S2) = So the ratio of the total surface area of a sphere and a hemisphere will be, Therefore, the ratio of the surface areas is. So, the correct option is (d)

The ratio of the total surface area of a sphere and a hemisphere of same radius is

(a) 2 : 1

(b) 3 : 2

(c) 4 : 1

(d) 4 : 3

In the given question,

The total surface area of a sphere (S₁) =

The total surface area of a hemisphere (S₂) =

So the ratio of the total surface area of a sphere and a hemisphere will be,

Therefore, the ratio of the surface areas is. So, the correct option is (d)