Q. 795.0( 1 Vote )

# Each question con

Assertion is wrong and Reason is Wrong.

Explanation:

Assertion (A):

Given: volumes of two sphere are in the ratio 27:8.

Volume of the sphere is given by: πr3

Let V1 be the volume of the first sphere.

Let V2 be the volume of the first sphere.

V1:V2 = π(r1)3 : π(r2)3

27:8 = (r1)3 : (r2)3

r1 : r2 = 3:2

Surface area of the sphere is given by: 4πr2

Let S1 be the Surface area of the sphere.

Let S2 be the Surface area of the sphere.

S1 : S2 = 4π(r1)2:4π(r2)2

S1 : S2 = (r1)2: (r2)2

S1 : S2 = (3)2: (2)2

S1 : S2 = 9:4

Reason(R):

Volume of a sphere = πr3.

Surface area of a sphere = 4πR2.

Assertion is wrong and Reason is Wrong.

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