A quantity which requires magnitude and direction to be specified is
Distance
Displacement
Mass
Temperature
The temperature at which the water vapour present in the air just sufficient to saturate the air is
Ice point
Saturation point
Dew point
Boiling point
Which of the following statements is the correct reason for using soft iron in making the armature of an electric bell?
It is a diamagnetic material
It losses its magnetism readily
It is not easily demagnetized
It retains its magnetism for a long time
A body of mass 36kg falls through a viscous liquid which offers a drag force of 260N on the body. The upthrust on the body at terminal velocity is
310 N
50 N
620 N
100 N
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