Physics In a Carnot engine when heat is taken from the source, its temperature Increases Remains constant Decreases and then remains constant Decreases Increases Remains constant Decreases and then remains constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Physics If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths? LUV > lVIS > lIR LUV > lIR > lVIS LUV < lIR < lVIS LUV < lVIS < lIR LUV > lVIS > lIR LUV > lIR > lVIS LUV < lIR < lVIS LUV < lVIS < lIR ANSWER DOWNLOAD EXAMIANS APP
Physics Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by Carbon dioxide Ozone Chlorine Ammonia Carbon dioxide Ozone Chlorine Ammonia ANSWER DOWNLOAD EXAMIANS APP
Physics The frequency of direct current is ________ 100 HZ 50 HZ 60 HZ Zero 100 HZ 50 HZ 60 HZ Zero ANSWER DOWNLOAD EXAMIANS APP
Physics When a piece of pure silicon is doped with aluminium, then The conductivity of the doped silicon piece will remain the same The doped silicon piece will become n-type The doped silicon piece will become p-type The resistivity of the doped silicon piece will increase The conductivity of the doped silicon piece will remain the same The doped silicon piece will become n-type The doped silicon piece will become p-type The resistivity of the doped silicon piece will increase ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following is credited for the discovery of ''Expanding Universe"? Niels Bohr V Raman S Chandra Shekhar Edwin Hubble Niels Bohr V Raman S Chandra Shekhar Edwin Hubble ANSWER DOWNLOAD EXAMIANS APP
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