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When a body is stationary:...

When a body is stationary:

A

There is no force acting on it

B

The agent applying force on it is not in contact with it

C

The combination of forces acting on it balance each other

D

The body is in vacuum

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The correct Answer is:
C
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Knowledge Check

  • When a maximum force of 3 N is applied on a body kept on rough inclined plane of shown in the figure, then body remains stationary. The maximum external force up the inclined plane that does not move the block is 12 N. The coefficient of static friction between the block and the plane is [Take, g = 10 m/ s^(2) ]

    A
    `(sqrt(3))/(5)`
    B
    `(1)/(sqrt(3))`
    C
    `(3sqrt(3))/(5)`
    D
    `(5)/(3sqrt(3))`

  • When a body is charged by induction the body

    A
    becomes neutral
    B
    does not lose any charge
    C
    loses whole of the charge on it
    D
    lose part of the charge on it

  • When an extended source of light moves towards a stationary opaque body, where the extended source is bigger than the opaque body, then on a stationary screen placed behind the object the

    A
    penumbra and umbra, both increase.
    B
    penumbra and umbra, both decrease.
    C
    penumbra increases and the umbra decreases.
    D
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    • NARAYNA-LAW OF MOTION-EXERCISE - IV
    1. When a body is stationary:

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    2. The inertia of a moving object depends on:

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    3. A thief stole a box full of valuable articles of weight W and while ca...

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    4. There are three Newton's laws of motion namely I, II and III : we can ...

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    5. Two blocks m(1) = 5 g and m(2)= 10 g are hung vertically over a light ...

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    6. In the figure a smooth pulley of negligible weight is suspended by a s...

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    7. Two masses 2 kg and 3 kg are attached to the end of the string passed ...

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    8. Two bodies of mass 6 kg and 4 kg are tied to a string as shown in the ...

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    9. The pulley arrangements shown in figure are identical, the mass of the...

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    10. A string of negligible mass going over a clamped pulley of mass m supp...

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    11. Two masses of 8 kg and 4 kg are connected by a string as shown in figu...

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    12. An empty plastic box of mass m is found to accelerate up at the rate o...

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    13. A monkey is decending from the branch of a tree with constant accelera...

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    14. Fig. shows a system of three masses being pulled with a force F. the m...

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    15. Fig. shows a block of mass m(1) resting on a smooth surface. It is con...

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    16. A 100 kg block is suspended with the help of three strings A, B and C....

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    17. A frictionless inclined plane of length l having inclination theta is ...

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    18. Friction

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    19. A box is placed on an inclined plane and has to be pushed down.The ang...

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    20. Figure shows two block A and B pushed against the wall with the force ...

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