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Assertion : Angular momentum of sun and ...

Assertion : Angular momentum of sun and planet system about any point remains constant
Reason : Two equal and opposite forces will acts on them. Net torque of these two set of forces about any point is zero.

A

If both Assertion and Reason are correct and Reason is the correct explanation of Assertion

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

C

If Assertion is true but Reason is fasle

D

If Assertion is false but Reason is true

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The correct Answer is:
A
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DC PANDEY-ROTATION-(B) Chapter Exercises
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  4. Assertion : Two identical solid spheres are rotated frm rest to same a...

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  5. Assertion : A ring and a disc of same mass and radius begin to roll wi...

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  6. Assertion : A sphere is placed in pure rolling condition over a rough ...

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  7. Assertion : In rotational plus translational motion of a rigid body, d...

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  8. Assertion : Angular momentum of sun and planet system about any point ...

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  9. Assertion : Moment of inertia about an axis passing throught centre of...

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  10. Assertion : A solid sphere cannot roll without slipping on smooth hori...

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  11. Assertion : Speed of any point on rigid body executing rolling motion...

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  12. Assertion : A solid sphere and a ring of same mass and radius are rele...

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  13. Assertion : A uniform disc of radius R is performing impure rolling mo...

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  14. Assertion : Two identical spherical balls are released from two inclin...

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  15. Assertion : A solid and a hollow sphere both of equal masses and radii...

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  16. If radius if earth is reduced to half without changing its mass, then ...

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  17. A disc rolls on ground without slipping. Velocity of centre of mass is...

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  18. A solid sphere is rotating about an axis shown in figure. An insect fo...

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  19. Four rods of equal length l and mass m each forms a square as shown in...

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  20. A semicircular ring has mass m and radius R as shown in figure. Let I(...

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