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A uniform square plate in xy plane has a...

A uniform square plate in xy plane has a small piece Q of an irregular shape removed and glued to the centre of the plate leaving a hole behind. The moment of inertia about the z-axis then

A

increased

B

decreased

C

the same

D

changed in unpredicted manner

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-EXERCISE - 1A
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  2. When a disc rotates with uniform angular velocity, which of the follow...

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  3. A uniform square plate in xy plane has a small piece Q of an irregular...

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  4. The net external torque on a system of particles about an axis is zero...

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  5. Choose the correct alternatives :

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  6. A child sits stationary at one end of a long trolley moving uniformly ...

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  7. (a) Algebraic sum of moments of masses about cenre of mass is zero ...

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  8. A trolley filled with sand moves on a smooth horizontal surface with a...

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  9. In which of the following cases the centre of mass of a rod is certain...

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  10. Identify the correct statement. In the absence of external force, ...

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  11. P is the centre of mass of a system of four point masses A, B, C and D...

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  12. Mass of a ring is non - uniformly distributed around its geometric cen...

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  13. A disc of radius .r. is removed from the disc of radius .R. then (...

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  14. In pure rolling motion of a ring (a) it rotates about instantaneou...

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  15. A tank filled with water is connected to another empty tank lying to t...

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  16. Statement A : When an iron sphere on the ground is heated its centre o...

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  17. Statement A : Whrn no external force acts on a body its centre of mass...

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  18. Statements : (a) In translatory motion each point of the body expe...

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  19. Statements : (a) Centre of mass is that fixed point of a system of p...

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  20. Statements : (a) Position of C.m depends on acceleration due to grav...

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