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Assertion : The sum of the clockwise mom...

Assertion : The sum of the clockwise moments is equal to the sum of the anticlockwise moments.
Reason : The principle of conservation of momentum is valid if the external force on the system is zero .

A

If both the assertion and the reason are true and the reason is the correct explanation of assertion.

B

If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.

C

Assertion is true, but the reason is false.

D

Assertion is false, but the reason is true.

Text Solution

Verified by Experts

The correct Answer is:
b
If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
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Knowledge Check

  • The moment of force in clockwise direction is _________ the moment in the anticlockwise direction.

    A
    equal to
    B
    lesser than
    C
    greater than
    D
    none

  • The sum of moments of masses of all the particles in a system about the center of mass is

    A
    minimum
    B
    maximum
    C
    zero
    D
    infinity

  • Assertion : When two tuning forks are vibrating with frequencies 256 Hz and 480 Hz are held near each other, beats cannot be heard. Reason : The principle of super position is valid if the frequencies of the oscillators are nearly equal.

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

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    Assertion : Resultant force is equal to the vector sum of all the forces. Reason : A system cannot be brought to equilibrium by applying another force.

    The algebraic sum of the moments in the clockwise direction is ________ to the algebraic sum moments in the anticlockwise .

    Assertion : When two tuning forks are vibrating with frequencies 256 Hz and 480 Hz are held near each other, beats cannot be heard. Reason : The principle of super position is valid if the frequencies of the oscillators are nearly equal.

    Assertion : The Angular velocity of a planet in its orbit around the sun increases when it is nearer to the sin, as the moment of Inertia of the planet about the sun decreases. This is an example for conservation of Angular momentum. Reason : The nearest position of the planet to the sun is called apogee and the farthest position is perigee.

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