Assertion (A) & Reason (B) MCQ

MCQ 11 Mark

Assertion (A) : Two cubes each of edge length 10 cm are joined together.The total surface area of newly formed cuboid is $1200 cm^2$.
Reason (R): Area of each surface of a cube of side 10 cm is $100 cm^2$.

A
Both Assertion (A) and Reason (R) are true. Reason (R) is the correct explanation of Assertion (A).
B
Both Assertion (A) and Reason (R) are true. Reason (R) does not give correct explanation of (A).
C
Assertion (A) is true but Reason (R) is not true.
D
Assertion (A) is not true but Reason (R) is true.

Answer

D Assertion (A) is not true but Reason (R) is true.

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MCQ 21 Mark

Assertion (A): If $\sin A =\frac{1}{3}\left(0^{\circ}< A <90^{\circ}\right)$, then the value of $\cos A$ is $\frac{2 \sqrt{2}}{3}$
Reason (R): For every angle $\theta, \sin ^2 \theta+\cos ^2 \theta=1$.

A
Both Assertion (A) and Reason (R) are true. Reason (R) is the correct explanation of Assertion (A).
B
Both Assertion (A) and Reason (R) are true. Reason (R) does not give correct explanation of (A).
C
Assertion (A) is true but Reason (R) is not true.
D
Assertion (A) is not true but Reason (R) is true.

Answer

A Both Assertion (A) and Reason (R) are true. Reason (R) is the correct explanation of Assertion (A).

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Maths Assertion (A) & Reason (B) MCQ

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