Physics-
General
Easy
Question
In the figure, the sphere rolls without slipping on the plank which is moving with constant velocity 
If the radius is 
and 
respectively. The velocity of centre of mass of the sphere is
The correct answer is:
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An equilateral triangle ABC formed from a uniform wire has two small identical beads initially located at A. The triangle is set rotating about the vertical axis AO. Then the beads are released from rest simultaneously and allowed to slide down, one along AB and the other along AC as shown. Neglecting frictional effects, the quantities that are conserved as the beads slide down, are
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physics-General
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Figure shows the displacement-time (x-t) graph of a body moving in a straight line Which one of the graphs shown in figure represents the velocity-time (v-t) graph of the motion of the body
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The rate constant of nth order reaction has units -
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The accompanying figure depicts the change in concentration of species X and Y for the reaction X→Y as a function of time the point of intersection of the two curves represents,
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chemistry-General
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Calculate the order of the reaction in A and B :
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chemistry-General
chemistry-
For a hypothetical reaction ;A+B
C the following data was obtained in three different experiments:
Suggest rate law :
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Suggest rate law :
chemistry-General
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Select the law that corresponds to data shown for the following reaction 
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chemistry-General
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Select the rate low that corresponds to the data shown for the following reaction A+BC
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chemistry-General
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An impulse J is applied on a ring of mass m along a line passing through its centre O and parallel to horizontal surface. The ring is paced on a rough horizontal surface. The linear velocity of centre of ring when it starts rolling without slipping is
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physics-General
