Physics
The spoon dropped by an astronaut in a satellite will

Remain stationary
Continue to follow the motion of the satellite
Fall to the floor
Move tangentially away

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Physics
The sky appears blue because

It is actually blue
In white light, the blue component dominates
All colours interfere to produce blue
The atmosphere scatters blue colour more than the others

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Physics
Of the four locations mentioned below the highest inside temperature will be attained in the pressure cooker operated with the pressure valve open

at a place in a valley below sea level
at the top of Mt. Everest
at sea level
in an aeroplane flying at a height of 10,000 m with inside pressure maintained at the sea level

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