Steel
Air
Vacuum
Water
Amount of water vapour in the atmosphere is measured in terms of
An 1800 W toaster, a 1.3KW electric fan and a 100W lamp are plugged in the same 120V circuit i.e. all the three devices are in parallel. What is the approximate value of the total current (i.e. sum of the current drawn by the three devices) through circuit ?
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is
An air bubble in water will act like a
An aircraft can perform aerobatic manoeuvres in a vertical loop as of
An antenna in a Geostationary satellite should have a minimum beam width of which among the following values to cover the entire earth?
An artificial Satellite revolves round the Earth in circular orbit, which quantity remains constant?
An artificial satellite stays in the orbit around the Earth because
An athlete runs before long jump to get advantage on
An atomic pile is used for
