General Knowledge :: Physics
- During hot weather, the fan produces a feeling of comfort. This is 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 :
- Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is
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