Physics-
General
Easy
Question
Velocity-time 
-
graph for a moving object is shown in the figure. Total displacement of the object during the same interval when there is non-zero acceleration and retardation is
The correct answer is:
Between time interval 
to 
, there is non-zero acceleration and retardation. Hence distance travelled during this interval
Area between time interval to
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Two trains are moving with equal speed in opposite directions along two parallel railway tracks. If the wind is blowing with speed along the track so that the relative velocities of the trains with respect to the wind are in the ratio 
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Physics-General
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Physical adsorption
Physical adsorption
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Adsorption is multilayer in the case of
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Chemistry-General
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In physical adsorption, the gas molecules are held on solid surface by
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Chemistry-General
