Physics-
General
Easy
Question
The balloon, the light rope and the monkey shown in figure are rest in the air. If the monkey goes to the top of the rope, by what distance does the balloon descend? Mass of the balloon 
mass of the monkey 
and the length of the rope
- None
The correct answer is:
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A cylinder of mass m and radius R, spinning about its axis with angular velocity 
and having velocity of centers of mass 
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A uniform meters stick of mass m is pivoted about a horizontal axis through its lower end O. Initially it is held vertical and is allowed to fall freely down. Its angular velocity at the instant when it makes angle 60° with vertical 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
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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Velocity -time (v-t) graph for a moving object is shown in the figure Total displacement of the object during the time interval when there is non-zero acceleration and retardation is
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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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physics-General
chemistry-
The rate constant of nth order reaction has units -
The rate constant of nth order reaction has units -
chemistry-General
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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 :
Calculate the order of the reaction in A and B :
chemistry-General
chemistry-
For a hypothetical reaction ;A+B
C the following data was obtained in three different experiments:
Suggest rate law :
For a hypothetical reaction ;A+BC the following data was obtained in three different experiments:
Suggest rate law :
chemistry-General
chemistry-
Select the law that corresponds to data shown for the following reaction 
Select the law that corresponds to data shown for the following reaction
chemistry-General
chemistry-
Select the rate low that corresponds to the data shown for the following reaction A+BC
Select the rate low that corresponds to the data shown for the following reaction A+BC
chemistry-General
physics-
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
physics-
Two springs, of force constants
, are connected to a mass 
as shown. The frequency of the mass is 
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Two springs, of force constants, are connected to a mass as shown. The frequency of the mass is . If both are made four times their original values, the frequency of oscillation becomes
physics-General
