Physics Which of the following waves cannot be polarised? Ultra violet Radio Ultrasonic Infrared Ultra violet Radio Ultrasonic Infrared ANSWER DOWNLOAD EXAMIANS APP
Physics Find the current (in A) when a charge of 500 Coulomb flows in 25 seconds. 20 6250 12500 40 20 6250 12500 40 ANSWER DOWNLOAD EXAMIANS APP
Physics 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 : Plastics have a lower density than metals Metals have higher thermal capacity than plastics Plastics have a higher thermal conductivity than metals Metals are good conductors of heat Plastics have a lower density than metals Metals have higher thermal capacity than plastics Plastics have a higher thermal conductivity than metals Metals are good conductors of heat ANSWER DOWNLOAD EXAMIANS APP
Physics In a Laser (say neon laser) all the atoms emit the light waves of Same frequency All of these Same amplitude Same phase Same frequency All of these Same amplitude Same phase ANSWER DOWNLOAD EXAMIANS APP
Physics Which, of the following radiations has the least wavelength ? B-rays G-rays X-rays A-rays B-rays G-rays X-rays A-rays ANSWER DOWNLOAD EXAMIANS APP
Physics Which physical quantity is measured in 'siemens'? Magnetic flux Refractive index Electrical conductance Electric potential Magnetic flux Refractive index Electrical conductance Electric potential ANSWER DOWNLOAD EXAMIANS APP
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