Assertion (A): In a solid hemisphere of radius 10 cm , a right co… - Vidyadip

MCQ

Assertion (A): In a solid hemisphere of radius 10 cm , a right cone of same radius is removed out. The surface area of the remaining solid is $570.74 cm^2$ [Take $\pi=3.14$ and $\sqrt{2}=1.4$ ]
Reason (R): Expression used here to calculate Surface area of remaining solid = Curved surface area of hemisphere + Curved surface area of cone

A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
✓
A is false but R is true.

✓

Answer

Correct option: D.

A is false but R is true.

(d) A is false but R is true.
Explanation : A is false but R is true.

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