A: When a man is walking on a rough road, the work done by frictional force is zero. R: Frictional force acts in the direction of the motion of the man in this case. (1) Assertion and reason are true and reason is the correct explanation of assertion (2) Assertion and reason are true but reason is not the correct explanation of the assertion (3) Assrertion is true but reason is false (4) Assertion is fals

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Q. Assertion : A body is moved from

x = 2

x = 1

, under a force

F = 4 x

, the work done by the force is negative.
Reason: Force and displacement are in opposite directions.

Assertion (A): Steel is more elastic than rubber.

Reason (R) : Under a given deforming force, steel is deformed less than rubber.

A) Both Assertion and Reason are true and the reason is correct explanation of the assertion
B)Both Assertion and Reason are true, but reason is not correct explanation of the assertion
C) Assertion is true, but the reason is false
D) Assertion is false, but the reason is true

Q. (i)
Assertion: A circle is not a rectilinear figure.
Reason: A figure formed by straight lines only is called a rectilinear figure.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
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(ii)
Assertion: All right angles are equal to one another.
Reason: A unique line passes through a single point.
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(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
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Q. Assertion: A cyclic parallelogram is a square.
Reason: Diameter is the largest chord in a circle.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
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(c) Assertion is true and Reason is false.
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Assertion: If $a \neq b$ , then $(a, b) \neq (b, a)$ .
Reason: $(4, - 3)$ lies in Quadrant $I V$
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(c) Assertion is true and Reason is false.
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