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A horizontal disc is rotating about a ve...

A horizontal disc is rotating about a vertical axis passing through its centre. If an insect moves from centre to rim then the angular momentum of the system

A

`[(1+e^2) /(1-e^2)]`

B

1

C

`[(1- e) /(1+e)]`

D

`[(1- e)^2 /(1+e)^2]`

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AAKASH INSTITUTE ENGLISH-TEST 2-Exercise
  1. Four thin rods of same mass and same length L form a square Radius of ...

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  2. Match the following columns

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  3. A horizontal disc is rotating about a vertical axis passing through it...

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  4. Two masses m1 and m2 are connected by a light rod of length I. If rod ...

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  5. A body is rolling down an inclined plane. If kinetic energy of rotatio...

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  6. A sphere cannot roll on

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  7. A solid sphere has combined linear and rotation motion as shown in fig...

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  8. A vector barP is along positive x axis, if barQ is another vector such...

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  9. The component of the vector barĀ= (2hat i +3 hat j) along the vector b...

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  10. What is the power of an engine which can lift 600 kg of water per minu...

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  11. When a spring is stretched by 2 cm, it stores 100J of energy. If it is...

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  12. A ball dropped from a height of 2 m rebounds to a height of 1.5 m afte...

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  13. The potential energy of 1 kg particle is [U(x) = (0.25 x^4) - (0.5 x^2...

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  14. A ring of mass m and radius R is being rotated about its axis with ang...

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  15. A bomb of mass 4m explodes into two parts of mass ratio 1 : 3. If k be...

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  16. Two identical blocks A and B are connected with a spring of constant k...

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  17. A particle of mass m1, hits another particle in rest of mass m2, obliq...

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  18. If all the particles of a body is situated at distance d from origin, ...

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  19. A ball is dropped from a height of 20 m in the floor and rebounds to 1...

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  20. If a current carrying loo experiences a force bar F = [F0 hat(k)] (whe...

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