Physics
A body moving in a circular path with a constant speed has a

Constant acceleration
Constant kinetic energy
Constant displacement
Constant velocity

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Physics
Rain drops fall from great height. Which among the following statements is true regarding it?

They fall with that ultimate velocity, which are different for different droplets
Their velocity increases and they fall with same velocity on the earth
They fall with same ultimate velocity
Their velocity increases and they fall with different velocity on the earth

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Physics
Light houses are places with powerful lights to :

Guide and warn the ships coming from different directions in the ocean
Guide and resolve traffic jams in crowded metro-cities during nights
Guide and help large crowds at religious gathering during nights
Indicate to the incoming warships, the location of a harbour during night

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