Of the following radiations, the one most easily stopped by air is composed of
Of the four locations mentioned below the highest inside temperature will be attained in the pressure cooker operated with the pressure valve open
Of the various non-conventional energy sources that are being tapped, which has the largest potential?
Ohms law is valid in case of
Oil raise up the wick in a lamp. The principle involves
Oil rises up the wick in a lamp as
On a cold day when a room temperature is 15 degree C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15 degree C, because
On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because :
On a stationary sail boat, air is blown from a fan attached to the boat. The boat
On heating a circular metallic disc with a circular hole at the centre, the diameter of the hole will
