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Systems of Particles and Rotational Motion Test - 35
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Systems of Particles and Rotational Motion Test - 35

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  • Question 1/10
    4 / -1
    If the earth were to suddenly contract so that its radius become half of it present radius, without any change in its mass, the duration of the new day will be...
    Solutions

  • Question 2/10
    4 / -1
    In HC1 molecule the separation between the nuclei of the two atoms is about 1.27Å (1Å = 10–10) The approximate location of the centre of mass of the molecule is –Åî with respect of Hydrogen atom ( mass of CL is 35.5 times of mass of Hydrogen)
    Solutions

  • Question 3/10
    4 / -1
    A car is moving at a speed of 72 km/hr the radius of its wheel is 0.25m. If the wheels are stopped in 20 rotations after applying breaks then angular retardation produced by the breaks is ......
    Solutions

  • Question 4/10
    4 / -1
    Two discs of the same material and thickness have radii 0.2 m and 0.6 m their moment of inertia about their axes will be in the ratio
    Solutions

  • Question 5/10
    4 / -1
    A wheel of mass 10 kg has a moment of inertia of 160 kg m2 about its own axis. The radius of gyration will be _______ m.
    Solutions

  • Question 6/10
    4 / -1
    One solid sphere A and another hollow sphere B are of the same mass and same outer radii. The moment of inertia about their diameters are respectively IA and IB such that...
    Solutions

  • Question 7/10
    4 / -1
    A ring of mass M and radius r is melted and then molded in to a sphere then the moment of inertia of the sphere will be.....
    Solutions

  • Question 8/10
    4 / -1
    One quater sector is cut from a uniform circular disc of radius R. This sector has mass M. It is made to rotate about a line perpendicular to its plane and passing through the centre of the original disc. Its moment of inertia about the axis of rotation is...

    Solutions

  • Question 9/10
    4 / -1
    Two disc of same thickness but of different radii are made of two different materials such that their masses are same. The densities of the materials are in the ratio 1:3. The moment of inertia of these disc about the respective axes passing through their centres and perpendicular to their planes will be in the ratio.
    Solutions

  • Question 10/10
    4 / -1
    Let I be the moment of inertia of a uniform square plate about an axis AB that passes through its centre and is parallel to two of its sides CD is a line in the plane of the plate that passes through the centre of the plate and makes an angle of Q with AB. The moment of inertia of the plate about the axis CD is then equal to....
    Solutions

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